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Finding the Fourth Proportional to 699,798.42, 966,186.63 and 538,368.66

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Solution

The fourth proportional to 699,798.42, 966,186.63 and 538,368.66 is: 743,306.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,798.42 : 966,186.63 = 538,368.66 : x
  2. Step 2: Convert to fraction form
    699,798.42/966,186.63 = 538,368.66/x
  3. Step 3: Cross multiply
    699,798.42x = 966,186.63 × 538,368.66
  4. Step 4: Simplify right side
    699,798.42x = 520,164,601,303.02
  5. Step 5: Solve for x
    x = 520,164,601,303.02/699,798.42
  6. Step 6: Final answer
    x = 743,306.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.