Home / 724,755.41-1,087,440.24-387,707.75

Finding the Fourth Proportional to 724,755.41, 1,087,440.24 and 387,707.75

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Solution

The fourth proportional to 724,755.41, 1,087,440.24 and 387,707.75 is: 581,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,755.41 : 1,087,440.24 = 387,707.75 : x
  2. Step 2: Convert to fraction form
    724,755.41/1,087,440.24 = 387,707.75/x
  3. Step 3: Cross multiply
    724,755.41x = 1,087,440.24 × 387,707.75
  4. Step 4: Simplify right side
    724,755.41x = 421,609,008,709.86
  5. Step 5: Solve for x
    x = 421,609,008,709.86/724,755.41
  6. Step 6: Final answer
    x = 581,725.92

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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.