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Finding the Fourth Proportional to 564,811.80, 847,217.70 and 423,094.20

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Solution

The fourth proportional to 564,811.80, 847,217.70 and 423,094.20 is: 634,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,811.80 : 847,217.70 = 423,094.20 : x
  2. Step 2: Convert to fraction form
    564,811.80/847,217.70 = 423,094.20/x
  3. Step 3: Cross multiply
    564,811.80x = 847,217.70 × 423,094.20
  4. Step 4: Simplify right side
    564,811.80x = 358,452,895,007.34
  5. Step 5: Solve for x
    x = 358,452,895,007.34/564,811.80
  6. Step 6: Final answer
    x = 634,641.30

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Similar ratio
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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.