Home / 1,210,920-1,671,121.44-674,376

Finding the Fourth Proportional to 1,210,920, 1,671,121.44 and 674,376

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Solution

The fourth proportional to 1,210,920, 1,671,121.44 and 674,376 is: 930,667.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,920 : 1,671,121.44 = 674,376 : x
  2. Step 2: Convert to fraction form
    1,210,920/1,671,121.44 = 674,376/x
  3. Step 3: Cross multiply
    1,210,920x = 1,671,121.44 × 674,376
  4. Step 4: Simplify right side
    1,210,920x = 1,126,964,192,221.44
  5. Step 5: Solve for x
    x = 1,126,964,192,221.44/1,210,920
  6. Step 6: Final answer
    x = 930,667.75

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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.