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Finding the Fourth Proportional to 389,868.80, 584,803.20 and 249,900.80

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Solution

The fourth proportional to 389,868.80, 584,803.20 and 249,900.80 is: 374,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,868.80 : 584,803.20 = 249,900.80 : x
  2. Step 2: Convert to fraction form
    389,868.80/584,803.20 = 249,900.80/x
  3. Step 3: Cross multiply
    389,868.80x = 584,803.20 × 249,900.80
  4. Step 4: Simplify right side
    389,868.80x = 146,142,787,522.56
  5. Step 5: Solve for x
    x = 146,142,787,522.56/389,868.80
  6. Step 6: Final answer
    x = 374,851.20

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