Home / 1,528,712.80-2,293,121.76-687,267.52

Finding the Fourth Proportional to 1,528,712.80, 2,293,121.76 and 687,267.52

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Solution

The fourth proportional to 1,528,712.80, 2,293,121.76 and 687,267.52 is: 1,030,924.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,712.80 : 2,293,121.76 = 687,267.52 : x
  2. Step 2: Convert to fraction form
    1,528,712.80/2,293,121.76 = 687,267.52/x
  3. Step 3: Cross multiply
    1,528,712.80x = 2,293,121.76 × 687,267.52
  4. Step 4: Simplify right side
    1,528,712.80x = 1,575,988,105,053.24
  5. Step 5: Solve for x
    x = 1,575,988,105,053.24/1,528,712.80
  6. Step 6: Final answer
    x = 1,030,924.91

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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.