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Finding the Fourth Proportional to 531,207.60, 796,811.40 and 342,250.80

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Solution

The fourth proportional to 531,207.60, 796,811.40 and 342,250.80 is: 513,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,207.60 : 796,811.40 = 342,250.80 : x
  2. Step 2: Convert to fraction form
    531,207.60/796,811.40 = 342,250.80/x
  3. Step 3: Cross multiply
    531,207.60x = 796,811.40 × 342,250.80
  4. Step 4: Simplify right side
    531,207.60x = 272,709,339,099.12
  5. Step 5: Solve for x
    x = 272,709,339,099.12/531,207.60
  6. Step 6: Final answer
    x = 513,376.20

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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.