Home / 495,979.20-743,968.80-318,832.20

Finding the Fourth Proportional to 495,979.20, 743,968.80 and 318,832.20

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Solution

The fourth proportional to 495,979.20, 743,968.80 and 318,832.20 is: 478,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,979.20 : 743,968.80 = 318,832.20 : x
  2. Step 2: Convert to fraction form
    495,979.20/743,968.80 = 318,832.20/x
  3. Step 3: Cross multiply
    495,979.20x = 743,968.80 × 318,832.20
  4. Step 4: Simplify right side
    495,979.20x = 237,201,209,235.36
  5. Step 5: Solve for x
    x = 237,201,209,235.36/495,979.20
  6. Step 6: Final answer
    x = 478,248.30

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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.