Home / 1,957,517.60-2,936,276.40-1,287,831.20

Finding the Fourth Proportional to 1,957,517.60, 2,936,276.40 and 1,287,831.20

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Solution

The fourth proportional to 1,957,517.60, 2,936,276.40 and 1,287,831.20 is: 1,931,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957,517.60 : 2,936,276.40 = 1,287,831.20 : x
  2. Step 2: Convert to fraction form
    1,957,517.60/2,936,276.40 = 1,287,831.20/x
  3. Step 3: Cross multiply
    1,957,517.60x = 2,936,276.40 × 1,287,831.20
  4. Step 4: Simplify right side
    1,957,517.60x = 3,781,428,359,743.68
  5. Step 5: Solve for x
    x = 3,781,428,359,743.68/1,957,517.60
  6. Step 6: Final answer
    x = 1,931,746.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.