Home / 1,278,926.16-1,764,498.95-911,461.18

Finding the Fourth Proportional to 1,278,926.16, 1,764,498.95 and 911,461.18

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Solution

The fourth proportional to 1,278,926.16, 1,764,498.95 and 911,461.18 is: 1,257,517.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,926.16 : 1,764,498.95 = 911,461.18 : x
  2. Step 2: Convert to fraction form
    1,278,926.16/1,764,498.95 = 911,461.18/x
  3. Step 3: Cross multiply
    1,278,926.16x = 1,764,498.95 × 911,461.18
  4. Step 4: Simplify right side
    1,278,926.16x = 1,608,272,281,695.96
  5. Step 5: Solve for x
    x = 1,608,272,281,695.96/1,278,926.16
  6. Step 6: Final answer
    x = 1,257,517.70

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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.