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Finding the Fourth Proportional to 656,341.80, 984,512.70 and 488,380.20

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Solution

The fourth proportional to 656,341.80, 984,512.70 and 488,380.20 is: 732,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,341.80 : 984,512.70 = 488,380.20 : x
  2. Step 2: Convert to fraction form
    656,341.80/984,512.70 = 488,380.20/x
  3. Step 3: Cross multiply
    656,341.80x = 984,512.70 × 488,380.20
  4. Step 4: Simplify right side
    656,341.80x = 480,816,509,328.54
  5. Step 5: Solve for x
    x = 480,816,509,328.54/656,341.80
  6. Step 6: Final answer
    x = 732,570.30

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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.