Home / 1,386,028.10-2,079,042.15-788,831.30

Finding the Fourth Proportional to 1,386,028.10, 2,079,042.15 and 788,831.30

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Solution

The fourth proportional to 1,386,028.10, 2,079,042.15 and 788,831.30 is: 1,183,246.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,028.10 : 2,079,042.15 = 788,831.30 : x
  2. Step 2: Convert to fraction form
    1,386,028.10/2,079,042.15 = 788,831.30/x
  3. Step 3: Cross multiply
    1,386,028.10x = 2,079,042.15 × 788,831.30
  4. Step 4: Simplify right side
    1,386,028.10x = 1,640,013,521,939.30
  5. Step 5: Solve for x
    x = 1,640,013,521,939.30/1,386,028.10
  6. Step 6: Final answer
    x = 1,183,246.95

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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.