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Finding the Fourth Proportional to 549,007.80, 823,511.70 and 283,287.30

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Solution

The fourth proportional to 549,007.80, 823,511.70 and 283,287.30 is: 424,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,007.80 : 823,511.70 = 283,287.30 : x
  2. Step 2: Convert to fraction form
    549,007.80/823,511.70 = 283,287.30/x
  3. Step 3: Cross multiply
    549,007.80x = 823,511.70 × 283,287.30
  4. Step 4: Simplify right side
    549,007.80x = 233,290,406,011.41
  5. Step 5: Solve for x
    x = 233,290,406,011.41/549,007.80
  6. Step 6: Final answer
    x = 424,930.95

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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.