Home / 1,252,859.68-1,728,959.04-679,904.80

Finding the Fourth Proportional to 1,252,859.68, 1,728,959.04 and 679,904.80

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Solution

The fourth proportional to 1,252,859.68, 1,728,959.04 and 679,904.80 is: 938,275.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,859.68 : 1,728,959.04 = 679,904.80 : x
  2. Step 2: Convert to fraction form
    1,252,859.68/1,728,959.04 = 679,904.80/x
  3. Step 3: Cross multiply
    1,252,859.68x = 1,728,959.04 × 679,904.80
  4. Step 4: Simplify right side
    1,252,859.68x = 1,175,527,550,299.39
  5. Step 5: Solve for x
    x = 1,175,527,550,299.39/1,252,859.68
  6. Step 6: Final answer
    x = 938,275.51

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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.