Home / 727,831.74-1,004,411.78-422,089.40

Finding the Fourth Proportional to 727,831.74, 1,004,411.78 and 422,089.40

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Solution

The fourth proportional to 727,831.74, 1,004,411.78 and 422,089.40 is: 582,485.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,831.74 : 1,004,411.78 = 422,089.40 : x
  2. Step 2: Convert to fraction form
    727,831.74/1,004,411.78 = 422,089.40/x
  3. Step 3: Cross multiply
    727,831.74x = 1,004,411.78 × 422,089.40
  4. Step 4: Simplify right side
    727,831.74x = 423,951,564,280.99
  5. Step 5: Solve for x
    x = 423,951,564,280.99/727,831.74
  6. Step 6: Final answer
    x = 582,485.68

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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.