Home / 787,151.19-1,086,075.90-442,920

Finding the Fourth Proportional to 787,151.19, 1,086,075.90 and 442,920

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Solution

The fourth proportional to 787,151.19, 1,086,075.90 and 442,920 is: 611,121.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,151.19 : 1,086,075.90 = 442,920 : x
  2. Step 2: Convert to fraction form
    787,151.19/1,086,075.90 = 442,920/x
  3. Step 3: Cross multiply
    787,151.19x = 1,086,075.90 × 442,920
  4. Step 4: Simplify right side
    787,151.19x = 481,044,737,628.00
  5. Step 5: Solve for x
    x = 481,044,737,628.00/787,151.19
  6. Step 6: Final answer
    x = 611,121.15

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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.