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Finding the Fourth Proportional to 406,008.80, 609,030.48 and 125,531.36

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Solution

The fourth proportional to 406,008.80, 609,030.48 and 125,531.36 is: 188,302.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,008.80 : 609,030.48 = 125,531.36 : x
  2. Step 2: Convert to fraction form
    406,008.80/609,030.48 = 125,531.36/x
  3. Step 3: Cross multiply
    406,008.80x = 609,030.48 × 125,531.36
  4. Step 4: Simplify right side
    406,008.80x = 76,452,424,435.85
  5. Step 5: Solve for x
    x = 76,452,424,435.85/406,008.80
  6. Step 6: Final answer
    x = 188,302.38

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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.