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Finding the Fourth Proportional to 538,479.60, 807,719.40 and 433,503.60

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Solution

The fourth proportional to 538,479.60, 807,719.40 and 433,503.60 is: 650,255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,479.60 : 807,719.40 = 433,503.60 : x
  2. Step 2: Convert to fraction form
    538,479.60/807,719.40 = 433,503.60/x
  3. Step 3: Cross multiply
    538,479.60x = 807,719.40 × 433,503.60
  4. Step 4: Simplify right side
    538,479.60x = 350,149,267,689.84
  5. Step 5: Solve for x
    x = 350,149,267,689.84/538,479.60
  6. Step 6: Final answer
    x = 650,255.40

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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.