Home / 739,073.40-1,108,901.70-289,717.80

Finding the Fourth Proportional to 739,073.40, 1,108,901.70 and 289,717.80

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Solution

The fourth proportional to 739,073.40, 1,108,901.70 and 289,717.80 is: 434,691.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,073.40 : 1,108,901.70 = 289,717.80 : x
  2. Step 2: Convert to fraction form
    739,073.40/1,108,901.70 = 289,717.80/x
  3. Step 3: Cross multiply
    739,073.40x = 1,108,901.70 × 289,717.80
  4. Step 4: Simplify right side
    739,073.40x = 321,268,560,940.26
  5. Step 5: Solve for x
    x = 321,268,560,940.26/739,073.40
  6. Step 6: Final answer
    x = 434,691.01

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Double scale
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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.