Home / 1,320,888.12-1,822,855.15-740,154.57

Finding the Fourth Proportional to 1,320,888.12, 1,822,855.15 and 740,154.57

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Solution

The fourth proportional to 1,320,888.12, 1,822,855.15 and 740,154.57 is: 1,021,429.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,888.12 : 1,822,855.15 = 740,154.57 : x
  2. Step 2: Convert to fraction form
    1,320,888.12/1,822,855.15 = 740,154.57/x
  3. Step 3: Cross multiply
    1,320,888.12x = 1,822,855.15 × 740,154.57
  4. Step 4: Simplify right side
    1,320,888.12x = 1,349,194,569,720.54
  5. Step 5: Solve for x
    x = 1,349,194,569,720.54/1,320,888.12
  6. Step 6: Final answer
    x = 1,021,429.86

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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.