Home / 1,168,815.12-1,612,990.02-645,524.34

Finding the Fourth Proportional to 1,168,815.12, 1,612,990.02 and 645,524.34

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Solution

The fourth proportional to 1,168,815.12, 1,612,990.02 and 645,524.34 is: 890,837.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,815.12 : 1,612,990.02 = 645,524.34 : x
  2. Step 2: Convert to fraction form
    1,168,815.12/1,612,990.02 = 645,524.34/x
  3. Step 3: Cross multiply
    1,168,815.12x = 1,612,990.02 × 645,524.34
  4. Step 4: Simplify right side
    1,168,815.12x = 1,041,224,318,087.09
  5. Step 5: Solve for x
    x = 1,041,224,318,087.09/1,168,815.12
  6. Step 6: Final answer
    x = 890,837.48

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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.