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Finding the Fourth Proportional to 495,432.60, 683,712.99 and 280,568.04

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Solution

The fourth proportional to 495,432.60, 683,712.99 and 280,568.04 is: 387,192.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,432.60 : 683,712.99 = 280,568.04 : x
  2. Step 2: Convert to fraction form
    495,432.60/683,712.99 = 280,568.04/x
  3. Step 3: Cross multiply
    495,432.60x = 683,712.99 × 280,568.04
  4. Step 4: Simplify right side
    495,432.60x = 191,828,013,526.84
  5. Step 5: Solve for x
    x = 191,828,013,526.84/495,432.60
  6. Step 6: Final answer
    x = 387,192.96

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