Home / 1,383,292.76-1,908,940.17-771,446.10

Finding the Fourth Proportional to 1,383,292.76, 1,908,940.17 and 771,446.10

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Solution

The fourth proportional to 1,383,292.76, 1,908,940.17 and 771,446.10 is: 1,064,593.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,292.76 : 1,908,940.17 = 771,446.10 : x
  2. Step 2: Convert to fraction form
    1,383,292.76/1,908,940.17 = 771,446.10/x
  3. Step 3: Cross multiply
    1,383,292.76x = 1,908,940.17 × 771,446.10
  4. Step 4: Simplify right side
    1,383,292.76x = 1,472,644,449,279.84
  5. Step 5: Solve for x
    x = 1,472,644,449,279.84/1,383,292.76
  6. Step 6: Final answer
    x = 1,064,593.48

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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.