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Finding the Fourth Proportional to 390,473.16, 585,487.80 and 153,687.48

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Solution

The fourth proportional to 390,473.16, 585,487.80 and 153,687.48 is: 230,443.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,473.16 : 585,487.80 = 153,687.48 : x
  2. Step 2: Convert to fraction form
    390,473.16/585,487.80 = 153,687.48/x
  3. Step 3: Cross multiply
    390,473.16x = 585,487.80 × 153,687.48
  4. Step 4: Simplify right side
    390,473.16x = 89,982,144,552.74
  5. Step 5: Solve for x
    x = 89,982,144,552.74/390,473.16
  6. Step 6: Final answer
    x = 230,443.87

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