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Finding the Fourth Proportional to 495,952.98, 684,422.61 and 278,209.92

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Solution

The fourth proportional to 495,952.98, 684,422.61 and 278,209.92 is: 383,933.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,952.98 : 684,422.61 = 278,209.92 : x
  2. Step 2: Convert to fraction form
    495,952.98/684,422.61 = 278,209.92/x
  3. Step 3: Cross multiply
    495,952.98x = 684,422.61 × 278,209.92
  4. Step 4: Simplify right side
    495,952.98x = 190,413,159,574.29
  5. Step 5: Solve for x
    x = 190,413,159,574.29/495,952.98
  6. Step 6: Final answer
    x = 383,933.90

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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.