Home / 650,743.20-976,114.80-384,366.60

Finding the Fourth Proportional to 650,743.20, 976,114.80 and 384,366.60

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Solution

The fourth proportional to 650,743.20, 976,114.80 and 384,366.60 is: 576,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,743.20 : 976,114.80 = 384,366.60 : x
  2. Step 2: Convert to fraction form
    650,743.20/976,114.80 = 384,366.60/x
  3. Step 3: Cross multiply
    650,743.20x = 976,114.80 × 384,366.60
  4. Step 4: Simplify right side
    650,743.20x = 375,185,926,885.68
  5. Step 5: Solve for x
    x = 375,185,926,885.68/650,743.20
  6. Step 6: Final answer
    x = 576,549.90

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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.