Home / 1,280,957.51-1,767,657.79-707,982.95

Finding the Fourth Proportional to 1,280,957.51, 1,767,657.79 and 707,982.95

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Solution

The fourth proportional to 1,280,957.51, 1,767,657.79 and 707,982.95 is: 976,981.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,957.51 : 1,767,657.79 = 707,982.95 : x
  2. Step 2: Convert to fraction form
    1,280,957.51/1,767,657.79 = 707,982.95/x
  3. Step 3: Cross multiply
    1,280,957.51x = 1,767,657.79 × 707,982.95
  4. Step 4: Simplify right side
    1,280,957.51x = 1,251,471,576,754.68
  5. Step 5: Solve for x
    x = 1,251,471,576,754.68/1,280,957.51
  6. Step 6: Final answer
    x = 976,981.33

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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.