Home / 1,159,621.20-1,739,431.80-739,717.20

Finding the Fourth Proportional to 1,159,621.20, 1,739,431.80 and 739,717.20

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Solution

The fourth proportional to 1,159,621.20, 1,739,431.80 and 739,717.20 is: 1,109,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,621.20 : 1,739,431.80 = 739,717.20 : x
  2. Step 2: Convert to fraction form
    1,159,621.20/1,739,431.80 = 739,717.20/x
  3. Step 3: Cross multiply
    1,159,621.20x = 1,739,431.80 × 739,717.20
  4. Step 4: Simplify right side
    1,159,621.20x = 1,286,687,620,686.96
  5. Step 5: Solve for x
    x = 1,286,687,620,686.96/1,159,621.20
  6. Step 6: Final answer
    x = 1,109,575.80

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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.