Home / 1,761,754.80-2,642,632.20-921,946.80

Finding the Fourth Proportional to 1,761,754.80, 2,642,632.20 and 921,946.80

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Solution

The fourth proportional to 1,761,754.80, 2,642,632.20 and 921,946.80 is: 1,382,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,754.80 : 2,642,632.20 = 921,946.80 : x
  2. Step 2: Convert to fraction form
    1,761,754.80/2,642,632.20 = 921,946.80/x
  3. Step 3: Cross multiply
    1,761,754.80x = 2,642,632.20 × 921,946.80
  4. Step 4: Simplify right side
    1,761,754.80x = 2,436,366,300,366.96
  5. Step 5: Solve for x
    x = 2,436,366,300,366.96/1,761,754.80
  6. Step 6: Final answer
    x = 1,382,920.20

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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.