Home / 487,362.14-731,043.22-321,111.26

Finding the Fourth Proportional to 487,362.14, 731,043.22 and 321,111.26

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Solution

The fourth proportional to 487,362.14, 731,043.22 and 321,111.26 is: 481,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,362.14 : 731,043.22 = 321,111.26 : x
  2. Step 2: Convert to fraction form
    487,362.14/731,043.22 = 321,111.26/x
  3. Step 3: Cross multiply
    487,362.14x = 731,043.22 × 321,111.26
  4. Step 4: Simplify right side
    487,362.14x = 234,746,209,488.66
  5. Step 5: Solve for x
    x = 234,746,209,488.66/487,362.14
  6. Step 6: Final answer
    x = 481,666.90

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Similar ratio
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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.