Home / 1,942,142.39-2,680,167.95-1,126,831.53

Finding the Fourth Proportional to 1,942,142.39, 2,680,167.95 and 1,126,831.53

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Solution

The fourth proportional to 1,942,142.39, 2,680,167.95 and 1,126,831.53 is: 1,555,034.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,142.39 : 2,680,167.95 = 1,126,831.53 : x
  2. Step 2: Convert to fraction form
    1,942,142.39/2,680,167.95 = 1,126,831.53/x
  3. Step 3: Cross multiply
    1,942,142.39x = 2,680,167.95 × 1,126,831.53
  4. Step 4: Simplify right side
    1,942,142.39x = 3,020,097,746,121.31
  5. Step 5: Solve for x
    x = 3,020,097,746,121.31/1,942,142.39
  6. Step 6: Final answer
    x = 1,555,034.16

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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.