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Finding the Fourth Proportional to 443,995.20, 665,992.80 and 433,497.60

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Solution

The fourth proportional to 443,995.20, 665,992.80 and 433,497.60 is: 650,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,995.20 : 665,992.80 = 433,497.60 : x
  2. Step 2: Convert to fraction form
    443,995.20/665,992.80 = 433,497.60/x
  3. Step 3: Cross multiply
    443,995.20x = 665,992.80 × 433,497.60
  4. Step 4: Simplify right side
    443,995.20x = 288,706,280,417.28
  5. Step 5: Solve for x
    x = 288,706,280,417.28/443,995.20
  6. Step 6: Final answer
    x = 650,246.40

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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.