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Finding the Fourth Proportional to 644,502.30, 966,753.45 and 364,566.30

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Solution

The fourth proportional to 644,502.30, 966,753.45 and 364,566.30 is: 546,849.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,502.30 : 966,753.45 = 364,566.30 : x
  2. Step 2: Convert to fraction form
    644,502.30/966,753.45 = 364,566.30/x
  3. Step 3: Cross multiply
    644,502.30x = 966,753.45 × 364,566.30
  4. Step 4: Simplify right side
    644,502.30x = 352,445,728,278.74
  5. Step 5: Solve for x
    x = 352,445,728,278.74/644,502.30
  6. Step 6: Final answer
    x = 546,849.45

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Half scale
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Double scale
Find fourth proportional to 644,503.30, 966,754.95 and 364,567.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.