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Finding the Fourth Proportional to 549,905.80, 824,858.70 and 371,446.60

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Solution

The fourth proportional to 549,905.80, 824,858.70 and 371,446.60 is: 557,169.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,905.80 : 824,858.70 = 371,446.60 : x
  2. Step 2: Convert to fraction form
    549,905.80/824,858.70 = 371,446.60/x
  3. Step 3: Cross multiply
    549,905.80x = 824,858.70 × 371,446.60
  4. Step 4: Simplify right side
    549,905.80x = 306,390,959,595.42
  5. Step 5: Solve for x
    x = 306,390,959,595.42/549,905.80
  6. Step 6: Final answer
    x = 557,169.90

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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.