Home / 406,471.66-609,739.04-122,140.02

Finding the Fourth Proportional to 406,471.66, 609,739.04 and 122,140.02

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Solution

The fourth proportional to 406,471.66, 609,739.04 and 122,140.02 is: 183,219.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,471.66 : 609,739.04 = 122,140.02 : x
  2. Step 2: Convert to fraction form
    406,471.66/609,739.04 = 122,140.02/x
  3. Step 3: Cross multiply
    406,471.66x = 609,739.04 × 122,140.02
  4. Step 4: Simplify right side
    406,471.66x = 74,473,538,540.38
  5. Step 5: Solve for x
    x = 74,473,538,540.38/406,471.66
  6. Step 6: Final answer
    x = 183,219.51

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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.