Home / 724,278.12-999,627.50-418,299.50

Finding the Fourth Proportional to 724,278.12, 999,627.50 and 418,299.50

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Solution

The fourth proportional to 724,278.12, 999,627.50 and 418,299.50 is: 577,324.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,278.12 : 999,627.50 = 418,299.50 : x
  2. Step 2: Convert to fraction form
    724,278.12/999,627.50 = 418,299.50/x
  3. Step 3: Cross multiply
    724,278.12x = 999,627.50 × 418,299.50
  4. Step 4: Simplify right side
    724,278.12x = 418,143,685,412.44
  5. Step 5: Solve for x
    x = 418,143,685,412.44/724,278.12
  6. Step 6: Final answer
    x = 577,324.75

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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.