Home / 756,072.20-1,134,545.70-282,805.40

Finding the Fourth Proportional to 756,072.20, 1,134,545.70 and 282,805.40

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Solution

The fourth proportional to 756,072.20, 1,134,545.70 and 282,805.40 is: 424,371.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,072.20 : 1,134,545.70 = 282,805.40 : x
  2. Step 2: Convert to fraction form
    756,072.20/1,134,545.70 = 282,805.40/x
  3. Step 3: Cross multiply
    756,072.20x = 1,134,545.70 × 282,805.40
  4. Step 4: Simplify right side
    756,072.20x = 320,855,650,506.78
  5. Step 5: Solve for x
    x = 320,855,650,506.78/756,072.20
  6. Step 6: Final answer
    x = 424,371.71

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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.