Home / 438,331.80-657,449.10-359,308.20

Finding the Fourth Proportional to 438,331.80, 657,449.10 and 359,308.20

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Solution

The fourth proportional to 438,331.80, 657,449.10 and 359,308.20 is: 538,922.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,331.80 : 657,449.10 = 359,308.20 : x
  2. Step 2: Convert to fraction form
    438,331.80/657,449.10 = 359,308.20/x
  3. Step 3: Cross multiply
    438,331.80x = 657,449.10 × 359,308.20
  4. Step 4: Simplify right side
    438,331.80x = 236,226,852,712.62
  5. Step 5: Solve for x
    x = 236,226,852,712.62/438,331.80
  6. Step 6: Final answer
    x = 538,922.46

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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.