Home / 821,705.16-1,232,690.17-253,086.07

Finding the Fourth Proportional to 821,705.16, 1,232,690.17 and 253,086.07

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Solution

The fourth proportional to 821,705.16, 1,232,690.17 and 253,086.07 is: 379,669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,705.16 : 1,232,690.17 = 253,086.07 : x
  2. Step 2: Convert to fraction form
    821,705.16/1,232,690.17 = 253,086.07/x
  3. Step 3: Cross multiply
    821,705.16x = 1,232,690.17 × 253,086.07
  4. Step 4: Simplify right side
    821,705.16x = 311,976,707,413.03
  5. Step 5: Solve for x
    x = 311,976,707,413.03/821,705.16
  6. Step 6: Final answer
    x = 379,669.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.