Home / 976,278.30-1,464,417.45-266,305.20

Finding the Fourth Proportional to 976,278.30, 1,464,417.45 and 266,305.20

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Solution

The fourth proportional to 976,278.30, 1,464,417.45 and 266,305.20 is: 399,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,278.30 : 1,464,417.45 = 266,305.20 : x
  2. Step 2: Convert to fraction form
    976,278.30/1,464,417.45 = 266,305.20/x
  3. Step 3: Cross multiply
    976,278.30x = 1,464,417.45 × 266,305.20
  4. Step 4: Simplify right side
    976,278.30x = 389,981,981,905.74
  5. Step 5: Solve for x
    x = 389,981,981,905.74/976,278.30
  6. Step 6: Final answer
    x = 399,457.80

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Double scale
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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.