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Finding the Fourth Proportional to 421,426.20, 581,520.42 and 249,349.44

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Solution

The fourth proportional to 421,426.20, 581,520.42 and 249,349.44 is: 344,073.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,426.20 : 581,520.42 = 249,349.44 : x
  2. Step 2: Convert to fraction form
    421,426.20/581,520.42 = 249,349.44/x
  3. Step 3: Cross multiply
    421,426.20x = 581,520.42 × 249,349.44
  4. Step 4: Simplify right side
    421,426.20x = 145,001,791,075.57
  5. Step 5: Solve for x
    x = 145,001,791,075.57/421,426.20
  6. Step 6: Final answer
    x = 344,073.98

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