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Finding the Fourth Proportional to 549,846.40, 824,769.60 and 425,276.80

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Solution

The fourth proportional to 549,846.40, 824,769.60 and 425,276.80 is: 637,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,846.40 : 824,769.60 = 425,276.80 : x
  2. Step 2: Convert to fraction form
    549,846.40/824,769.60 = 425,276.80/x
  3. Step 3: Cross multiply
    549,846.40x = 824,769.60 × 425,276.80
  4. Step 4: Simplify right side
    549,846.40x = 350,755,376,225.28
  5. Step 5: Solve for x
    x = 350,755,376,225.28/549,846.40
  6. Step 6: Final answer
    x = 637,915.20

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Similar ratio
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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.