Home / 1,646,116.39-2,271,728.84-920,920.85

Finding the Fourth Proportional to 1,646,116.39, 2,271,728.84 and 920,920.85

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Solution

The fourth proportional to 1,646,116.39, 2,271,728.84 and 920,920.85 is: 1,270,920.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646,116.39 : 2,271,728.84 = 920,920.85 : x
  2. Step 2: Convert to fraction form
    1,646,116.39/2,271,728.84 = 920,920.85/x
  3. Step 3: Cross multiply
    1,646,116.39x = 2,271,728.84 × 920,920.85
  4. Step 4: Simplify right side
    1,646,116.39x = 2,092,082,454,302.31
  5. Step 5: Solve for x
    x = 2,092,082,454,302.31/1,646,116.39
  6. Step 6: Final answer
    x = 1,270,920.13

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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.