Home / 724,845.57-1,000,228.55-418,941.76

Finding the Fourth Proportional to 724,845.57, 1,000,228.55 and 418,941.76

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Solution

The fourth proportional to 724,845.57, 1,000,228.55 and 418,941.76 is: 578,105.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,845.57 : 1,000,228.55 = 418,941.76 : x
  2. Step 2: Convert to fraction form
    724,845.57/1,000,228.55 = 418,941.76/x
  3. Step 3: Cross multiply
    724,845.57x = 1,000,228.55 × 418,941.76
  4. Step 4: Simplify right side
    724,845.57x = 419,037,512,116.56
  5. Step 5: Solve for x
    x = 419,037,512,116.56/724,845.57
  6. Step 6: Final answer
    x = 578,105.92

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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.