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Finding the Fourth Proportional to 572,787.20, 860,098.80 and 455,434.40

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Solution

The fourth proportional to 572,787.20, 860,098.80 and 455,434.40 is: 683,881.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,787.20 : 860,098.80 = 455,434.40 : x
  2. Step 2: Convert to fraction form
    572,787.20/860,098.80 = 455,434.40/x
  3. Step 3: Cross multiply
    572,787.20x = 860,098.80 × 455,434.40
  4. Step 4: Simplify right side
    572,787.20x = 391,718,580,918.72
  5. Step 5: Solve for x
    x = 391,718,580,918.72/572,787.20
  6. Step 6: Final answer
    x = 683,881.52

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