Home / 739,083.40-1,108,916.70-289,727.80

Finding the Fourth Proportional to 739,083.40, 1,108,916.70 and 289,727.80

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Solution

The fourth proportional to 739,083.40, 1,108,916.70 and 289,727.80 is: 434,706.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,083.40 : 1,108,916.70 = 289,727.80 : x
  2. Step 2: Convert to fraction form
    739,083.40/1,108,916.70 = 289,727.80/x
  3. Step 3: Cross multiply
    739,083.40x = 1,108,916.70 × 289,727.80
  4. Step 4: Simplify right side
    739,083.40x = 321,283,995,874.26
  5. Step 5: Solve for x
    x = 321,283,995,874.26/739,083.40
  6. Step 6: Final answer
    x = 434,706.01

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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.