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Finding the Fourth Proportional to 614,864.80, 921,433.20 and 488,720.80

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Solution

The fourth proportional to 614,864.80, 921,433.20 and 488,720.80 is: 732,394.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,864.80 : 921,433.20 = 488,720.80 : x
  2. Step 2: Convert to fraction form
    614,864.80/921,433.20 = 488,720.80/x
  3. Step 3: Cross multiply
    614,864.80x = 921,433.20 × 488,720.80
  4. Step 4: Simplify right side
    614,864.80x = 450,323,570,650.56
  5. Step 5: Solve for x
    x = 450,323,570,650.56/614,864.80
  6. Step 6: Final answer
    x = 732,394.46

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