Home / 2,681,320-3,699,836.80-1,578,095.68

Finding the Fourth Proportional to 2,681,320, 3,699,836.80 and 1,578,095.68

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Solution

The fourth proportional to 2,681,320, 3,699,836.80 and 1,578,095.68 is: 2,177,545.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681,320 : 3,699,836.80 = 1,578,095.68 : x
  2. Step 2: Convert to fraction form
    2,681,320/3,699,836.80 = 1,578,095.68/x
  3. Step 3: Cross multiply
    2,681,320x = 3,699,836.80 × 1,578,095.68
  4. Step 4: Simplify right side
    2,681,320x = 5,838,696,470,785.02
  5. Step 5: Solve for x
    x = 5,838,696,470,785.02/2,681,320
  6. Step 6: Final answer
    x = 2,177,545.56

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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.