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Finding the Fourth Proportional to 482,789.75, 724,252.30 and 145,792.20

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Solution

The fourth proportional to 482,789.75, 724,252.30 and 145,792.20 is: 218,708.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,789.75 : 724,252.30 = 145,792.20 : x
  2. Step 2: Convert to fraction form
    482,789.75/724,252.30 = 145,792.20/x
  3. Step 3: Cross multiply
    482,789.75x = 724,252.30 × 145,792.20
  4. Step 4: Simplify right side
    482,789.75x = 105,590,336,172.06
  5. Step 5: Solve for x
    x = 105,590,336,172.06/482,789.75
  6. Step 6: Final answer
    x = 218,708.74

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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.