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Finding the Fourth Proportional to 487,558.40, 731,337.60 and 444,012.80

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Solution

The fourth proportional to 487,558.40, 731,337.60 and 444,012.80 is: 666,019.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,558.40 : 731,337.60 = 444,012.80 : x
  2. Step 2: Convert to fraction form
    487,558.40/731,337.60 = 444,012.80/x
  3. Step 3: Cross multiply
    487,558.40x = 731,337.60 × 444,012.80
  4. Step 4: Simplify right side
    487,558.40x = 324,723,255,521.28
  5. Step 5: Solve for x
    x = 324,723,255,521.28/487,558.40
  6. Step 6: Final answer
    x = 666,019.20

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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.