Home / 1,420,989.66-1,962,275.25-912,577.74

Finding the Fourth Proportional to 1,420,989.66, 1,962,275.25 and 912,577.74

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Solution

The fourth proportional to 1,420,989.66, 1,962,275.25 and 912,577.74 is: 1,260,198.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,989.66 : 1,962,275.25 = 912,577.74 : x
  2. Step 2: Convert to fraction form
    1,420,989.66/1,962,275.25 = 912,577.74/x
  3. Step 3: Cross multiply
    1,420,989.66x = 1,962,275.25 × 912,577.74
  4. Step 4: Simplify right side
    1,420,989.66x = 1,790,728,712,902.94
  5. Step 5: Solve for x
    x = 1,790,728,712,902.94/1,420,989.66
  6. Step 6: Final answer
    x = 1,260,198.27

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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.