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Finding the Fourth Proportional to 482,671.80, 724,007.70 and 305,962.20

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Solution

The fourth proportional to 482,671.80, 724,007.70 and 305,962.20 is: 458,943.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,671.80 : 724,007.70 = 305,962.20 : x
  2. Step 2: Convert to fraction form
    482,671.80/724,007.70 = 305,962.20/x
  3. Step 3: Cross multiply
    482,671.80x = 724,007.70 × 305,962.20
  4. Step 4: Simplify right side
    482,671.80x = 221,518,988,708.94
  5. Step 5: Solve for x
    x = 221,518,988,708.94/482,671.80
  6. Step 6: Final answer
    x = 458,943.30

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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.