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Finding the Fourth Proportional to 495,739.78, 684,119.64 and 269,385.28

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Solution

The fourth proportional to 495,739.78, 684,119.64 and 269,385.28 is: 371,751.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,739.78 : 684,119.64 = 269,385.28 : x
  2. Step 2: Convert to fraction form
    495,739.78/684,119.64 = 269,385.28/x
  3. Step 3: Cross multiply
    495,739.78x = 684,119.64 × 269,385.28
  4. Step 4: Simplify right side
    495,739.78x = 184,291,760,774.90
  5. Step 5: Solve for x
    x = 184,291,760,774.90/495,739.78
  6. Step 6: Final answer
    x = 371,751.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.