Home / 724,199.16-999,514.98-422,393.16

Finding the Fourth Proportional to 724,199.16, 999,514.98 and 422,393.16

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Solution

The fourth proportional to 724,199.16, 999,514.98 and 422,393.16 is: 582,972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,199.16 : 999,514.98 = 422,393.16 : x
  2. Step 2: Convert to fraction form
    724,199.16/999,514.98 = 422,393.16/x
  3. Step 3: Cross multiply
    724,199.16x = 999,514.98 × 422,393.16
  4. Step 4: Simplify right side
    724,199.16x = 422,188,290,869.54
  5. Step 5: Solve for x
    x = 422,188,290,869.54/724,199.16
  6. Step 6: Final answer
    x = 582,972.63

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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.