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Finding the Fourth Proportional to 495,899.80, 745,404.90 and 486,568.60

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Solution

The fourth proportional to 495,899.80, 745,404.90 and 486,568.60 is: 731,378.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,899.80 : 745,404.90 = 486,568.60 : x
  2. Step 2: Convert to fraction form
    495,899.80/745,404.90 = 486,568.60/x
  3. Step 3: Cross multiply
    495,899.80x = 745,404.90 × 486,568.60
  4. Step 4: Simplify right side
    495,899.80x = 362,690,618,626.14
  5. Step 5: Solve for x
    x = 362,690,618,626.14/495,899.80
  6. Step 6: Final answer
    x = 731,378.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.