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Finding the Fourth Proportional to 561,636.60, 842,454.90 and 402,204.30

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Solution

The fourth proportional to 561,636.60, 842,454.90 and 402,204.30 is: 603,306.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,636.60 : 842,454.90 = 402,204.30 : x
  2. Step 2: Convert to fraction form
    561,636.60/842,454.90 = 402,204.30/x
  3. Step 3: Cross multiply
    561,636.60x = 842,454.90 × 402,204.30
  4. Step 4: Simplify right side
    561,636.60x = 338,838,983,336.07
  5. Step 5: Solve for x
    x = 338,838,983,336.07/561,636.60
  6. Step 6: Final answer
    x = 603,306.45

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