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Finding the Fourth Proportional to 502,073.20, 753,109.80 and 303,007.60

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Solution

The fourth proportional to 502,073.20, 753,109.80 and 303,007.60 is: 454,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,073.20 : 753,109.80 = 303,007.60 : x
  2. Step 2: Convert to fraction form
    502,073.20/753,109.80 = 303,007.60/x
  3. Step 3: Cross multiply
    502,073.20x = 753,109.80 × 303,007.60
  4. Step 4: Simplify right side
    502,073.20x = 228,197,993,034.48
  5. Step 5: Solve for x
    x = 228,197,993,034.48/502,073.20
  6. Step 6: Final answer
    x = 454,511.40

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Similar ratio
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1.5x scale

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.