Home / 1,515,045.12-2,091,519.20-942,269.92

Finding the Fourth Proportional to 1,515,045.12, 2,091,519.20 and 942,269.92

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Solution

The fourth proportional to 1,515,045.12, 2,091,519.20 and 942,269.92 is: 1,300,803.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,045.12 : 2,091,519.20 = 942,269.92 : x
  2. Step 2: Convert to fraction form
    1,515,045.12/2,091,519.20 = 942,269.92/x
  3. Step 3: Cross multiply
    1,515,045.12x = 2,091,519.20 × 942,269.92
  4. Step 4: Simplify right side
    1,515,045.12x = 1,970,775,629,262.46
  5. Step 5: Solve for x
    x = 1,970,775,629,262.46/1,515,045.12
  6. Step 6: Final answer
    x = 1,300,803.26

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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.