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Finding the Fourth Proportional to 381,390.40, 572,085.60 and 363,894.40

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Solution

The fourth proportional to 381,390.40, 572,085.60 and 363,894.40 is: 545,841.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,390.40 : 572,085.60 = 363,894.40 : x
  2. Step 2: Convert to fraction form
    381,390.40/572,085.60 = 363,894.40/x
  3. Step 3: Cross multiply
    381,390.40x = 572,085.60 × 363,894.40
  4. Step 4: Simplify right side
    381,390.40x = 208,178,746,160.64
  5. Step 5: Solve for x
    x = 208,178,746,160.64/381,390.40
  6. Step 6: Final answer
    x = 545,841.60

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