Home / 709,407.45-1,063,701.59-485,039.61

Finding the Fourth Proportional to 709,407.45, 1,063,701.59 and 485,039.61

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Solution

The fourth proportional to 709,407.45, 1,063,701.59 and 485,039.61 is: 727,279.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,407.45 : 1,063,701.59 = 485,039.61 : x
  2. Step 2: Convert to fraction form
    709,407.45/1,063,701.59 = 485,039.61/x
  3. Step 3: Cross multiply
    709,407.45x = 1,063,701.59 × 485,039.61
  4. Step 4: Simplify right side
    709,407.45x = 515,937,401,944.78
  5. Step 5: Solve for x
    x = 515,937,401,944.78/709,407.45
  6. Step 6: Final answer
    x = 727,279.37

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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.