Home / 822,833.12-1,135,474.80-478,669.88

Finding the Fourth Proportional to 822,833.12, 1,135,474.80 and 478,669.88

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Solution

The fourth proportional to 822,833.12, 1,135,474.80 and 478,669.88 is: 660,544.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,833.12 : 1,135,474.80 = 478,669.88 : x
  2. Step 2: Convert to fraction form
    822,833.12/1,135,474.80 = 478,669.88/x
  3. Step 3: Cross multiply
    822,833.12x = 1,135,474.80 × 478,669.88
  4. Step 4: Simplify right side
    822,833.12x = 543,517,586,259.02
  5. Step 5: Solve for x
    x = 543,517,586,259.02/822,833.12
  6. Step 6: Final answer
    x = 660,544.13

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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.