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Finding the Fourth Proportional to 520,099.80, 781,316.10 and 362,635.80

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Solution

The fourth proportional to 520,099.80, 781,316.10 and 362,635.80 is: 544,766.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,099.80 : 781,316.10 = 362,635.80 : x
  2. Step 2: Convert to fraction form
    520,099.80/781,316.10 = 362,635.80/x
  3. Step 3: Cross multiply
    520,099.80x = 781,316.10 × 362,635.80
  4. Step 4: Simplify right side
    520,099.80x = 283,333,188,976.38
  5. Step 5: Solve for x
    x = 283,333,188,976.38/520,099.80
  6. Step 6: Final answer
    x = 544,766.96

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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.