Home / 908,718.96-1,254,028.05-500,819.91

Finding the Fourth Proportional to 908,718.96, 1,254,028.05 and 500,819.91

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Solution

The fourth proportional to 908,718.96, 1,254,028.05 and 500,819.91 is: 691,129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,718.96 : 1,254,028.05 = 500,819.91 : x
  2. Step 2: Convert to fraction form
    908,718.96/1,254,028.05 = 500,819.91/x
  3. Step 3: Cross multiply
    908,718.96x = 1,254,028.05 × 500,819.91
  4. Step 4: Simplify right side
    908,718.96x = 628,042,215,138.48
  5. Step 5: Solve for x
    x = 628,042,215,138.48/908,718.96
  6. Step 6: Final answer
    x = 691,129.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.