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Finding the Fourth Proportional to 486,031.60, 729,047.40 and 336,230.20

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Solution

The fourth proportional to 486,031.60, 729,047.40 and 336,230.20 is: 504,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,031.60 : 729,047.40 = 336,230.20 : x
  2. Step 2: Convert to fraction form
    486,031.60/729,047.40 = 336,230.20/x
  3. Step 3: Cross multiply
    486,031.60x = 729,047.40 × 336,230.20
  4. Step 4: Simplify right side
    486,031.60x = 245,127,753,111.48
  5. Step 5: Solve for x
    x = 245,127,753,111.48/486,031.60
  6. Step 6: Final answer
    x = 504,345.30

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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.