Home / 324,090.10-486,572.55-257,605.30

Finding the Fourth Proportional to 324,090.10, 486,572.55 and 257,605.30

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Solution

The fourth proportional to 324,090.10, 486,572.55 and 257,605.30 is: 386,755.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,090.10 : 486,572.55 = 257,605.30 : x
  2. Step 2: Convert to fraction form
    324,090.10/486,572.55 = 257,605.30/x
  3. Step 3: Cross multiply
    324,090.10x = 486,572.55 × 257,605.30
  4. Step 4: Simplify right side
    324,090.10x = 125,343,667,714.52
  5. Step 5: Solve for x
    x = 125,343,667,714.52/324,090.10
  6. Step 6: Final answer
    x = 386,755.62

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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.