Home / 1,084,220.56-1,497,479.70-721,014.40

Finding the Fourth Proportional to 1,084,220.56, 1,497,479.70 and 721,014.40

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Solution

The fourth proportional to 1,084,220.56, 1,497,479.70 and 721,014.40 is: 995,834.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084,220.56 : 1,497,479.70 = 721,014.40 : x
  2. Step 2: Convert to fraction form
    1,084,220.56/1,497,479.70 = 721,014.40/x
  3. Step 3: Cross multiply
    1,084,220.56x = 1,497,479.70 × 721,014.40
  4. Step 4: Simplify right side
    1,084,220.56x = 1,079,704,427,407.68
  5. Step 5: Solve for x
    x = 1,079,704,427,407.68/1,084,220.56
  6. Step 6: Final answer
    x = 995,834.67

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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.