Home / 1,257,920.28-1,735,882.61-768,707.82

Finding the Fourth Proportional to 1,257,920.28, 1,735,882.61 and 768,707.82

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Solution

The fourth proportional to 1,257,920.28, 1,735,882.61 and 768,707.82 is: 1,060,787.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,920.28 : 1,735,882.61 = 768,707.82 : x
  2. Step 2: Convert to fraction form
    1,257,920.28/1,735,882.61 = 768,707.82/x
  3. Step 3: Cross multiply
    1,257,920.28x = 1,735,882.61 × 768,707.82
  4. Step 4: Simplify right side
    1,257,920.28x = 1,334,386,533,065.47
  5. Step 5: Solve for x
    x = 1,334,386,533,065.47/1,257,920.28
  6. Step 6: Final answer
    x = 1,060,787.84

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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.