Home / 724,035.78-999,169.38-401,797.74

Finding the Fourth Proportional to 724,035.78, 999,169.38 and 401,797.74

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Solution

The fourth proportional to 724,035.78, 999,169.38 and 401,797.74 is: 554,480.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,035.78 : 999,169.38 = 401,797.74 : x
  2. Step 2: Convert to fraction form
    724,035.78/999,169.38 = 401,797.74/x
  3. Step 3: Cross multiply
    724,035.78x = 999,169.38 × 401,797.74
  4. Step 4: Simplify right side
    724,035.78x = 401,463,996,612.74
  5. Step 5: Solve for x
    x = 401,463,996,612.74/724,035.78
  6. Step 6: Final answer
    x = 554,480.88

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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.