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Finding the Fourth Proportional to 584,428.80, 876,643.20 and 385,363.20

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Solution

The fourth proportional to 584,428.80, 876,643.20 and 385,363.20 is: 578,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,428.80 : 876,643.20 = 385,363.20 : x
  2. Step 2: Convert to fraction form
    584,428.80/876,643.20 = 385,363.20/x
  3. Step 3: Cross multiply
    584,428.80x = 876,643.20 × 385,363.20
  4. Step 4: Simplify right side
    584,428.80x = 337,826,028,810.24
  5. Step 5: Solve for x
    x = 337,826,028,810.24/584,428.80
  6. Step 6: Final answer
    x = 578,044.80

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