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Finding the Fourth Proportional to 457,482.40, 686,223.60 and 125,058.40

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Solution

The fourth proportional to 457,482.40, 686,223.60 and 125,058.40 is: 187,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,482.40 : 686,223.60 = 125,058.40 : x
  2. Step 2: Convert to fraction form
    457,482.40/686,223.60 = 125,058.40/x
  3. Step 3: Cross multiply
    457,482.40x = 686,223.60 × 125,058.40
  4. Step 4: Simplify right side
    457,482.40x = 85,818,025,458.24
  5. Step 5: Solve for x
    x = 85,818,025,458.24/457,482.40
  6. Step 6: Final answer
    x = 187,587.60

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