Home / 1,557,086.84-2,148,776.86-868,717.74

Finding the Fourth Proportional to 1,557,086.84, 2,148,776.86 and 868,717.74

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Solution

The fourth proportional to 1,557,086.84, 2,148,776.86 and 868,717.74 is: 1,198,828.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,086.84 : 2,148,776.86 = 868,717.74 : x
  2. Step 2: Convert to fraction form
    1,557,086.84/2,148,776.86 = 868,717.74/x
  3. Step 3: Cross multiply
    1,557,086.84x = 2,148,776.86 × 868,717.74
  4. Step 4: Simplify right side
    1,557,086.84x = 1,866,680,577,583.50
  5. Step 5: Solve for x
    x = 1,866,680,577,583.50/1,557,086.84
  6. Step 6: Final answer
    x = 1,198,828.82

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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.