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Finding the Fourth Proportional to 549,410.40, 824,115.60 and 424,840.80

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Solution

The fourth proportional to 549,410.40, 824,115.60 and 424,840.80 is: 637,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,410.40 : 824,115.60 = 424,840.80 : x
  2. Step 2: Convert to fraction form
    549,410.40/824,115.60 = 424,840.80/x
  3. Step 3: Cross multiply
    549,410.40x = 824,115.60 × 424,840.80
  4. Step 4: Simplify right side
    549,410.40x = 350,117,930,796.48
  5. Step 5: Solve for x
    x = 350,117,930,796.48/549,410.40
  6. Step 6: Final answer
    x = 637,261.20

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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.