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Finding the Fourth Proportional to 555,715.38, 766,888.02 and 301,066.56

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Solution

The fourth proportional to 555,715.38, 766,888.02 and 301,066.56 is: 415,472.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,715.38 : 766,888.02 = 301,066.56 : x
  2. Step 2: Convert to fraction form
    555,715.38/766,888.02 = 301,066.56/x
  3. Step 3: Cross multiply
    555,715.38x = 766,888.02 × 301,066.56
  4. Step 4: Simplify right side
    555,715.38x = 230,884,338,086.61
  5. Step 5: Solve for x
    x = 230,884,338,086.61/555,715.38
  6. Step 6: Final answer
    x = 415,472.28

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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.