Home / 1,421,728.80-2,130,868.80-1,044,251.52

Finding the Fourth Proportional to 1,421,728.80, 2,130,868.80 and 1,044,251.52

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Solution

The fourth proportional to 1,421,728.80, 2,130,868.80 and 1,044,251.52 is: 1,565,110.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,728.80 : 2,130,868.80 = 1,044,251.52 : x
  2. Step 2: Convert to fraction form
    1,421,728.80/2,130,868.80 = 1,044,251.52/x
  3. Step 3: Cross multiply
    1,421,728.80x = 2,130,868.80 × 1,044,251.52
  4. Step 4: Simplify right side
    1,421,728.80x = 2,225,162,983,320.58
  5. Step 5: Solve for x
    x = 2,225,162,983,320.58/1,421,728.80
  6. Step 6: Final answer
    x = 1,565,110.72

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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.