Home / 833,806.86-1,247,720.58-721,872.06

Finding the Fourth Proportional to 833,806.86, 1,247,720.58 and 721,872.06

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Solution

The fourth proportional to 833,806.86, 1,247,720.58 and 721,872.06 is: 1,080,219.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    833,806.86 : 1,247,720.58 = 721,872.06 : x
  2. Step 2: Convert to fraction form
    833,806.86/1,247,720.58 = 721,872.06/x
  3. Step 3: Cross multiply
    833,806.86x = 1,247,720.58 × 721,872.06
  4. Step 4: Simplify right side
    833,806.86x = 900,694,625,389.00
  5. Step 5: Solve for x
    x = 900,694,625,389.00/833,806.86
  6. Step 6: Final answer
    x = 1,080,219.74

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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.