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Finding the Fourth Proportional to 493,667.20, 740,500.80 and 283,326.40

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Solution

The fourth proportional to 493,667.20, 740,500.80 and 283,326.40 is: 424,989.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,667.20 : 740,500.80 = 283,326.40 : x
  2. Step 2: Convert to fraction form
    493,667.20/740,500.80 = 283,326.40/x
  3. Step 3: Cross multiply
    493,667.20x = 740,500.80 × 283,326.40
  4. Step 4: Simplify right side
    493,667.20x = 209,803,425,861.12
  5. Step 5: Solve for x
    x = 209,803,425,861.12/493,667.20
  6. Step 6: Final answer
    x = 424,989.60

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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.