Home / 739,252.12-1,108,997.80-289,729.20

Finding the Fourth Proportional to 739,252.12, 1,108,997.80 and 289,729.20

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Solution

The fourth proportional to 739,252.12, 1,108,997.80 and 289,729.20 is: 434,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,252.12 : 1,108,997.80 = 289,729.20 : x
  2. Step 2: Convert to fraction form
    739,252.12/1,108,997.80 = 289,729.20/x
  3. Step 3: Cross multiply
    739,252.12x = 1,108,997.80 × 289,729.20
  4. Step 4: Simplify right side
    739,252.12x = 321,309,045,395.76
  5. Step 5: Solve for x
    x = 321,309,045,395.76/739,252.12
  6. Step 6: Final answer
    x = 434,640.68

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1.5x scale

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.