Home / 1,146,558.40-1,719,319.20-515,147.20

Finding the Fourth Proportional to 1,146,558.40, 1,719,319.20 and 515,147.20

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Solution

The fourth proportional to 1,146,558.40, 1,719,319.20 and 515,147.20 is: 772,487.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,558.40 : 1,719,319.20 = 515,147.20 : x
  2. Step 2: Convert to fraction form
    1,146,558.40/1,719,319.20 = 515,147.20/x
  3. Step 3: Cross multiply
    1,146,558.40x = 1,719,319.20 × 515,147.20
  4. Step 4: Simplify right side
    1,146,558.40x = 885,702,471,786.24
  5. Step 5: Solve for x
    x = 885,702,471,786.24/1,146,558.40
  6. Step 6: Final answer
    x = 772,487.88

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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.