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Finding the Fourth Proportional to 649,387.55, 896,077.20 and 358,959.89

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Solution

The fourth proportional to 649,387.55, 896,077.20 and 358,959.89 is: 495,321.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,387.55 : 896,077.20 = 358,959.89 : x
  2. Step 2: Convert to fraction form
    649,387.55/896,077.20 = 358,959.89/x
  3. Step 3: Cross multiply
    649,387.55x = 896,077.20 × 358,959.89
  4. Step 4: Simplify right side
    649,387.55x = 321,655,768,663.12
  5. Step 5: Solve for x
    x = 321,655,768,663.12/649,387.55
  6. Step 6: Final answer
    x = 495,321.74

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