Home / 495,961.20-743,941.80-318,814.20

Finding the Fourth Proportional to 495,961.20, 743,941.80 and 318,814.20

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Solution

The fourth proportional to 495,961.20, 743,941.80 and 318,814.20 is: 478,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,961.20 : 743,941.80 = 318,814.20 : x
  2. Step 2: Convert to fraction form
    495,961.20/743,941.80 = 318,814.20/x
  3. Step 3: Cross multiply
    495,961.20x = 743,941.80 × 318,814.20
  4. Step 4: Simplify right side
    495,961.20x = 237,179,209,813.56
  5. Step 5: Solve for x
    x = 237,179,209,813.56/495,961.20
  6. Step 6: Final answer
    x = 478,221.30

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1.5x scale

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.