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Finding the Fourth Proportional to 549,679.80, 824,519.70 and 461,106.30

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Solution

The fourth proportional to 549,679.80, 824,519.70 and 461,106.30 is: 691,659.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,679.80 : 824,519.70 = 461,106.30 : x
  2. Step 2: Convert to fraction form
    549,679.80/824,519.70 = 461,106.30/x
  3. Step 3: Cross multiply
    549,679.80x = 824,519.70 × 461,106.30
  4. Step 4: Simplify right side
    549,679.80x = 380,191,228,144.11
  5. Step 5: Solve for x
    x = 380,191,228,144.11/549,679.80
  6. Step 6: Final answer
    x = 691,659.45

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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.