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Finding the Fourth Proportional to 555,475.18, 766,618.10 and 313,773.32

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Solution

The fourth proportional to 555,475.18, 766,618.10 and 313,773.32 is: 433,042.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,475.18 : 766,618.10 = 313,773.32 : x
  2. Step 2: Convert to fraction form
    555,475.18/766,618.10 = 313,773.32/x
  3. Step 3: Cross multiply
    555,475.18x = 766,618.10 × 313,773.32
  4. Step 4: Simplify right side
    555,475.18x = 240,544,306,409.09
  5. Step 5: Solve for x
    x = 240,544,306,409.09/555,475.18
  6. Step 6: Final answer
    x = 433,042.40

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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.