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Finding the Fourth Proportional to 495,381.04, 683,909.28 and 326,107.28

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Solution

The fourth proportional to 495,381.04, 683,909.28 and 326,107.28 is: 450,214.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,381.04 : 683,909.28 = 326,107.28 : x
  2. Step 2: Convert to fraction form
    495,381.04/683,909.28 = 326,107.28/x
  3. Step 3: Cross multiply
    495,381.04x = 683,909.28 × 326,107.28
  4. Step 4: Simplify right side
    495,381.04x = 223,027,795,067.56
  5. Step 5: Solve for x
    x = 223,027,795,067.56/495,381.04
  6. Step 6: Final answer
    x = 450,214.64

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1.5x scale

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.