Home / 743,035.92-1,025,401.44-420,737.28

Finding the Fourth Proportional to 743,035.92, 1,025,401.44 and 420,737.28

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Solution

The fourth proportional to 743,035.92, 1,025,401.44 and 420,737.28 is: 580,624.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,035.92 : 1,025,401.44 = 420,737.28 : x
  2. Step 2: Convert to fraction form
    743,035.92/1,025,401.44 = 420,737.28/x
  3. Step 3: Cross multiply
    743,035.92x = 1,025,401.44 × 420,737.28
  4. Step 4: Simplify right side
    743,035.92x = 431,424,612,773.68
  5. Step 5: Solve for x
    x = 431,424,612,773.68/743,035.92
  6. Step 6: Final answer
    x = 580,624.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.