Home / 1,788,780.39-2,468,292.41-1,209,264.15

Finding the Fourth Proportional to 1,788,780.39, 2,468,292.41 and 1,209,264.15

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Solution

The fourth proportional to 1,788,780.39, 2,468,292.41 and 1,209,264.15 is: 1,668,632.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,780.39 : 2,468,292.41 = 1,209,264.15 : x
  2. Step 2: Convert to fraction form
    1,788,780.39/2,468,292.41 = 1,209,264.15/x
  3. Step 3: Cross multiply
    1,788,780.39x = 2,468,292.41 × 1,209,264.15
  4. Step 4: Simplify right side
    1,788,780.39x = 2,984,817,517,083.78
  5. Step 5: Solve for x
    x = 2,984,817,517,083.78/1,788,780.39
  6. Step 6: Final answer
    x = 1,668,632.74

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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.