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Finding the Fourth Proportional to 502,666.20, 753,999.30 and 303,211.80

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Solution

The fourth proportional to 502,666.20, 753,999.30 and 303,211.80 is: 454,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,666.20 : 753,999.30 = 303,211.80 : x
  2. Step 2: Convert to fraction form
    502,666.20/753,999.30 = 303,211.80/x
  3. Step 3: Cross multiply
    502,666.20x = 753,999.30 × 303,211.80
  4. Step 4: Simplify right side
    502,666.20x = 228,621,484,951.74
  5. Step 5: Solve for x
    x = 228,621,484,951.74/502,666.20
  6. Step 6: Final answer
    x = 454,817.70

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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.