Home / 1,645,861.33-2,271,517.53-920,758.06

Finding the Fourth Proportional to 1,645,861.33, 2,271,517.53 and 920,758.06

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Solution

The fourth proportional to 1,645,861.33, 2,271,517.53 and 920,758.06 is: 1,270,774.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,861.33 : 2,271,517.53 = 920,758.06 : x
  2. Step 2: Convert to fraction form
    1,645,861.33/2,271,517.53 = 920,758.06/x
  3. Step 3: Cross multiply
    1,645,861.33x = 2,271,517.53 × 920,758.06
  4. Step 4: Simplify right side
    1,645,861.33x = 2,091,518,067,176.70
  5. Step 5: Solve for x
    x = 2,091,518,067,176.70/1,645,861.33
  6. Step 6: Final answer
    x = 1,270,774.17

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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.