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Finding the Fourth Proportional to 555,202.56, 766,248.96 and 328,934.40

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Solution

The fourth proportional to 555,202.56, 766,248.96 and 328,934.40 is: 453,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,202.56 : 766,248.96 = 328,934.40 : x
  2. Step 2: Convert to fraction form
    555,202.56/766,248.96 = 328,934.40/x
  3. Step 3: Cross multiply
    555,202.56x = 766,248.96 × 328,934.40
  4. Step 4: Simplify right side
    555,202.56x = 252,045,641,908.22
  5. Step 5: Solve for x
    x = 252,045,641,908.22/555,202.56
  6. Step 6: Final answer
    x = 453,970.60

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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.