Home / 921,381.12-1,382,182.44-870,992.64

Finding the Fourth Proportional to 921,381.12, 1,382,182.44 and 870,992.64

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Solution

The fourth proportional to 921,381.12, 1,382,182.44 and 870,992.64 is: 1,306,593.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,381.12 : 1,382,182.44 = 870,992.64 : x
  2. Step 2: Convert to fraction form
    921,381.12/1,382,182.44 = 870,992.64/x
  3. Step 3: Cross multiply
    921,381.12x = 1,382,182.44 × 870,992.64
  4. Step 4: Simplify right side
    921,381.12x = 1,203,870,732,377.24
  5. Step 5: Solve for x
    x = 1,203,870,732,377.24/921,381.12
  6. Step 6: Final answer
    x = 1,306,593.66

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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.