Home / 406,472.16-609,739.80-122,140.52

Finding the Fourth Proportional to 406,472.16, 609,739.80 and 122,140.52

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Solution

The fourth proportional to 406,472.16, 609,739.80 and 122,140.52 is: 183,220.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,472.16 : 609,739.80 = 122,140.52 : x
  2. Step 2: Convert to fraction form
    406,472.16/609,739.80 = 122,140.52/x
  3. Step 3: Cross multiply
    406,472.16x = 609,739.80 × 122,140.52
  4. Step 4: Simplify right side
    406,472.16x = 74,473,936,236.70
  5. Step 5: Solve for x
    x = 74,473,936,236.70/406,472.16
  6. Step 6: Final answer
    x = 183,220.26

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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.