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Finding the Fourth Proportional to 490,704.60, 736,056.90 and 487,594.20

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Solution

The fourth proportional to 490,704.60, 736,056.90 and 487,594.20 is: 731,391.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,704.60 : 736,056.90 = 487,594.20 : x
  2. Step 2: Convert to fraction form
    490,704.60/736,056.90 = 487,594.20/x
  3. Step 3: Cross multiply
    490,704.60x = 736,056.90 × 487,594.20
  4. Step 4: Simplify right side
    490,704.60x = 358,897,075,309.98
  5. Step 5: Solve for x
    x = 358,897,075,309.98/490,704.60
  6. Step 6: Final answer
    x = 731,391.30

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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.