Home / 718,331.38-1,077,502.46-318,864.76

Finding the Fourth Proportional to 718,331.38, 1,077,502.46 and 318,864.76

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Solution

The fourth proportional to 718,331.38, 1,077,502.46 and 318,864.76 is: 478,299.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,331.38 : 1,077,502.46 = 318,864.76 : x
  2. Step 2: Convert to fraction form
    718,331.38/1,077,502.46 = 318,864.76/x
  3. Step 3: Cross multiply
    718,331.38x = 1,077,502.46 × 318,864.76
  4. Step 4: Simplify right side
    718,331.38x = 343,577,563,307.31
  5. Step 5: Solve for x
    x = 343,577,563,307.31/718,331.38
  6. Step 6: Final answer
    x = 478,299.53

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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.