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Finding the Fourth Proportional to 485,817.45, 732,425.62 and 451,569.03

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Solution

The fourth proportional to 485,817.45, 732,425.62 and 451,569.03 is: 680,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,817.45 : 732,425.62 = 451,569.03 : x
  2. Step 2: Convert to fraction form
    485,817.45/732,425.62 = 451,569.03/x
  3. Step 3: Cross multiply
    485,817.45x = 732,425.62 × 451,569.03
  4. Step 4: Simplify right side
    485,817.45x = 330,740,722,471.68
  5. Step 5: Solve for x
    x = 330,740,722,471.68/485,817.45
  6. Step 6: Final answer
    x = 680,792.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.