Home / 724,241.70-1,087,399.35-409,313.70

Finding the Fourth Proportional to 724,241.70, 1,087,399.35 and 409,313.70

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Solution

The fourth proportional to 724,241.70, 1,087,399.35 and 409,313.70 is: 614,556.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,241.70 : 1,087,399.35 = 409,313.70 : x
  2. Step 2: Convert to fraction form
    724,241.70/1,087,399.35 = 409,313.70/x
  3. Step 3: Cross multiply
    724,241.70x = 1,087,399.35 × 409,313.70
  4. Step 4: Simplify right side
    724,241.70x = 445,087,451,326.10
  5. Step 5: Solve for x
    x = 445,087,451,326.10/724,241.70
  6. Step 6: Final answer
    x = 614,556.51

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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.