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Finding the Fourth Proportional to 555,998.28, 767,269.31 and 314,272.36

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Solution

The fourth proportional to 555,998.28, 767,269.31 and 314,272.36 is: 433,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,998.28 : 767,269.31 = 314,272.36 : x
  2. Step 2: Convert to fraction form
    555,998.28/767,269.31 = 314,272.36/x
  3. Step 3: Cross multiply
    555,998.28x = 767,269.31 × 314,272.36
  4. Step 4: Simplify right side
    555,998.28x = 241,131,533,648.89
  5. Step 5: Solve for x
    x = 241,131,533,648.89/555,998.28
  6. Step 6: Final answer
    x = 433,691.15

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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.