Home / 406,490.43-609,765.89-122,158.23

Finding the Fourth Proportional to 406,490.43, 609,765.89 and 122,158.23

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Solution

The fourth proportional to 406,490.43, 609,765.89 and 122,158.23 is: 183,246.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,490.43 : 609,765.89 = 122,158.23 : x
  2. Step 2: Convert to fraction form
    406,490.43/609,765.89 = 122,158.23/x
  3. Step 3: Cross multiply
    406,490.43x = 609,765.89 × 122,158.23
  4. Step 4: Simplify right side
    406,490.43x = 74,487,918,939.36
  5. Step 5: Solve for x
    x = 74,487,918,939.36/406,490.43
  6. Step 6: Final answer
    x = 183,246.43

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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.