Home / 1,565,143.82-2,347,916.20-485,728.10

Finding the Fourth Proportional to 1,565,143.82, 2,347,916.20 and 485,728.10

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Solution

The fourth proportional to 1,565,143.82, 2,347,916.20 and 485,728.10 is: 728,654.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,143.82 : 2,347,916.20 = 485,728.10 : x
  2. Step 2: Convert to fraction form
    1,565,143.82/2,347,916.20 = 485,728.10/x
  3. Step 3: Cross multiply
    1,565,143.82x = 2,347,916.20 × 485,728.10
  4. Step 4: Simplify right side
    1,565,143.82x = 1,140,448,861,831.32
  5. Step 5: Solve for x
    x = 1,140,448,861,831.32/1,565,143.82
  6. Step 6: Final answer
    x = 728,654.36

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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.