Home / 724,396.71-1,086,152.19-345,433.35

Finding the Fourth Proportional to 724,396.71, 1,086,152.19 and 345,433.35

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Solution

The fourth proportional to 724,396.71, 1,086,152.19 and 345,433.35 is: 517,938.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,396.71 : 1,086,152.19 = 345,433.35 : x
  2. Step 2: Convert to fraction form
    724,396.71/1,086,152.19 = 345,433.35/x
  3. Step 3: Cross multiply
    724,396.71x = 1,086,152.19 × 345,433.35
  4. Step 4: Simplify right side
    724,396.71x = 375,193,184,170.78
  5. Step 5: Solve for x
    x = 375,193,184,170.78/724,396.71
  6. Step 6: Final answer
    x = 517,938.83

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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.