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Finding the Fourth Proportional to 549,008.30, 823,512.45 and 283,287.80

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Solution

The fourth proportional to 549,008.30, 823,512.45 and 283,287.80 is: 424,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,008.30 : 823,512.45 = 283,287.80 : x
  2. Step 2: Convert to fraction form
    549,008.30/823,512.45 = 283,287.80/x
  3. Step 3: Cross multiply
    549,008.30x = 823,512.45 × 283,287.80
  4. Step 4: Simplify right side
    549,008.30x = 233,291,030,233.11
  5. Step 5: Solve for x
    x = 233,291,030,233.11/549,008.30
  6. Step 6: Final answer
    x = 424,931.70

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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.