Home / 1,377,678.80-2,062,831.80-876,328.40

Finding the Fourth Proportional to 1,377,678.80, 2,062,831.80 and 876,328.40

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Solution

The fourth proportional to 1,377,678.80, 2,062,831.80 and 876,328.40 is: 1,312,147.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,678.80 : 2,062,831.80 = 876,328.40 : x
  2. Step 2: Convert to fraction form
    1,377,678.80/2,062,831.80 = 876,328.40/x
  3. Step 3: Cross multiply
    1,377,678.80x = 2,062,831.80 × 876,328.40
  4. Step 4: Simplify right side
    1,377,678.80x = 1,807,718,090,763.12
  5. Step 5: Solve for x
    x = 1,807,718,090,763.12/1,377,678.80
  6. Step 6: Final answer
    x = 1,312,147.72

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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.