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Finding the Fourth Proportional to 424,525.92, 585,792.40 and 287,003.90

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Solution

The fourth proportional to 424,525.92, 585,792.40 and 287,003.90 is: 396,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,525.92 : 585,792.40 = 287,003.90 : x
  2. Step 2: Convert to fraction form
    424,525.92/585,792.40 = 287,003.90/x
  3. Step 3: Cross multiply
    424,525.92x = 585,792.40 × 287,003.90
  4. Step 4: Simplify right side
    424,525.92x = 168,124,703,390.36
  5. Step 5: Solve for x
    x = 168,124,703,390.36/424,525.92
  6. Step 6: Final answer
    x = 396,029.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.