Home / 724,916.12-1,087,069.61-275,388.80

Finding the Fourth Proportional to 724,916.12, 1,087,069.61 and 275,388.80

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Solution

The fourth proportional to 724,916.12, 1,087,069.61 and 275,388.80 is: 412,967.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,916.12 : 1,087,069.61 = 275,388.80 : x
  2. Step 2: Convert to fraction form
    724,916.12/1,087,069.61 = 275,388.80/x
  3. Step 3: Cross multiply
    724,916.12x = 1,087,069.61 × 275,388.80
  4. Step 4: Simplify right side
    724,916.12x = 299,366,790,667.49
  5. Step 5: Solve for x
    x = 299,366,790,667.49/724,916.12
  6. Step 6: Final answer
    x = 412,967.49

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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.