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Finding the Fourth Proportional to 495,176.60, 683,345.76 and 280,358.12

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Solution

The fourth proportional to 495,176.60, 683,345.76 and 280,358.12 is: 386,895.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,176.60 : 683,345.76 = 280,358.12 : x
  2. Step 2: Convert to fraction form
    495,176.60/683,345.76 = 280,358.12/x
  3. Step 3: Cross multiply
    495,176.60x = 683,345.76 × 280,358.12
  4. Step 4: Simplify right side
    495,176.60x = 191,581,532,583.57
  5. Step 5: Solve for x
    x = 191,581,532,583.57/495,176.60
  6. Step 6: Final answer
    x = 386,895.37

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