Home / 478,747.56-718,285.38-163,425.90

Finding the Fourth Proportional to 478,747.56, 718,285.38 and 163,425.90

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Solution

The fourth proportional to 478,747.56, 718,285.38 and 163,425.90 is: 245,194.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,747.56 : 718,285.38 = 163,425.90 : x
  2. Step 2: Convert to fraction form
    478,747.56/718,285.38 = 163,425.90/x
  3. Step 3: Cross multiply
    478,747.56x = 718,285.38 × 163,425.90
  4. Step 4: Simplify right side
    478,747.56x = 117,386,434,683.34
  5. Step 5: Solve for x
    x = 117,386,434,683.34/478,747.56
  6. Step 6: Final answer
    x = 245,194.85

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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.