Home / 878,831.52-1,318,641.12-405,263.04

Finding the Fourth Proportional to 878,831.52, 1,318,641.12 and 405,263.04

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Solution

The fourth proportional to 878,831.52, 1,318,641.12 and 405,263.04 is: 608,076.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,831.52 : 1,318,641.12 = 405,263.04 : x
  2. Step 2: Convert to fraction form
    878,831.52/1,318,641.12 = 405,263.04/x
  3. Step 3: Cross multiply
    878,831.52x = 1,318,641.12 × 405,263.04
  4. Step 4: Simplify right side
    878,831.52x = 534,396,508,960.21
  5. Step 5: Solve for x
    x = 534,396,508,960.21/878,831.52
  6. Step 6: Final answer
    x = 608,076.17

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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.