Home / 859,663.22-1,289,049.15-455,074.70

Finding the Fourth Proportional to 859,663.22, 1,289,049.15 and 455,074.70

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Solution

The fourth proportional to 859,663.22, 1,289,049.15 and 455,074.70 is: 682,376.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,663.22 : 1,289,049.15 = 455,074.70 : x
  2. Step 2: Convert to fraction form
    859,663.22/1,289,049.15 = 455,074.70/x
  3. Step 3: Cross multiply
    859,663.22x = 1,289,049.15 × 455,074.70
  4. Step 4: Simplify right side
    859,663.22x = 586,613,655,221.51
  5. Step 5: Solve for x
    x = 586,613,655,221.51/859,663.22
  6. Step 6: Final answer
    x = 682,376.12

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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.