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Finding the Fourth Proportional to 486,947.40, 730,421.10 and 300,064.20

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Solution

The fourth proportional to 486,947.40, 730,421.10 and 300,064.20 is: 450,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,947.40 : 730,421.10 = 300,064.20 : x
  2. Step 2: Convert to fraction form
    486,947.40/730,421.10 = 300,064.20/x
  3. Step 3: Cross multiply
    486,947.40x = 730,421.10 × 300,064.20
  4. Step 4: Simplify right side
    486,947.40x = 219,173,223,034.62
  5. Step 5: Solve for x
    x = 219,173,223,034.62/486,947.40
  6. Step 6: Final answer
    x = 450,096.30

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Similar ratio
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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.