Home / 833,742.32-1,247,623.97-721,807.61

Finding the Fourth Proportional to 833,742.32, 1,247,623.97 and 721,807.61

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Solution

The fourth proportional to 833,742.32, 1,247,623.97 and 721,807.61 is: 1,080,123.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    833,742.32 : 1,247,623.97 = 721,807.61 : x
  2. Step 2: Convert to fraction form
    833,742.32/1,247,623.97 = 721,807.61/x
  3. Step 3: Cross multiply
    833,742.32x = 1,247,623.97 × 721,807.61
  4. Step 4: Simplify right side
    833,742.32x = 900,544,466,117.25
  5. Step 5: Solve for x
    x = 900,544,466,117.25/833,742.32
  6. Step 6: Final answer
    x = 1,080,123.26

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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.