Home / 337,319.40-505,979.10-318,948.60

Finding the Fourth Proportional to 337,319.40, 505,979.10 and 318,948.60

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Solution

The fourth proportional to 337,319.40, 505,979.10 and 318,948.60 is: 478,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,319.40 : 505,979.10 = 318,948.60 : x
  2. Step 2: Convert to fraction form
    337,319.40/505,979.10 = 318,948.60/x
  3. Step 3: Cross multiply
    337,319.40x = 505,979.10 × 318,948.60
  4. Step 4: Simplify right side
    337,319.40x = 161,381,325,574.26
  5. Step 5: Solve for x
    x = 161,381,325,574.26/337,319.40
  6. Step 6: Final answer
    x = 478,422.90

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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.