Home / 1,912,892.76-2,639,197.08-1,085,830.92

Finding the Fourth Proportional to 1,912,892.76, 2,639,197.08 and 1,085,830.92

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Solution

The fourth proportional to 1,912,892.76, 2,639,197.08 and 1,085,830.92 is: 1,498,108.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,892.76 : 2,639,197.08 = 1,085,830.92 : x
  2. Step 2: Convert to fraction form
    1,912,892.76/2,639,197.08 = 1,085,830.92/x
  3. Step 3: Cross multiply
    1,912,892.76x = 2,639,197.08 × 1,085,830.92
  4. Step 4: Simplify right side
    1,912,892.76x = 2,865,721,793,437.71
  5. Step 5: Solve for x
    x = 2,865,721,793,437.71/1,912,892.76
  6. Step 6: Final answer
    x = 1,498,108.97

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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.