Home / 821,810.20-1,230,641.70-655,922.20

Finding the Fourth Proportional to 821,810.20, 1,230,641.70 and 655,922.20

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Solution

The fourth proportional to 821,810.20, 1,230,641.70 and 655,922.20 is: 982,228.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,810.20 : 1,230,641.70 = 655,922.20 : x
  2. Step 2: Convert to fraction form
    821,810.20/1,230,641.70 = 655,922.20/x
  3. Step 3: Cross multiply
    821,810.20x = 1,230,641.70 × 655,922.20
  4. Step 4: Simplify right side
    821,810.20x = 807,205,211,275.74
  5. Step 5: Solve for x
    x = 807,205,211,275.74/821,810.20
  6. Step 6: Final answer
    x = 982,228.27

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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.