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Finding the Fourth Proportional to 495,726.62, 684,047.21 and 280,820.66

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Solution

The fourth proportional to 495,726.62, 684,047.21 and 280,820.66 is: 387,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,726.62 : 684,047.21 = 280,820.66 : x
  2. Step 2: Convert to fraction form
    495,726.62/684,047.21 = 280,820.66/x
  3. Step 3: Cross multiply
    495,726.62x = 684,047.21 × 280,820.66
  4. Step 4: Simplify right side
    495,726.62x = 192,094,584,159.02
  5. Step 5: Solve for x
    x = 192,094,584,159.02/495,726.62
  6. Step 6: Final answer
    x = 387,501.05

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