Home / 1,383,156.96-1,908,764.94-771,348.39

Finding the Fourth Proportional to 1,383,156.96, 1,908,764.94 and 771,348.39

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Solution

The fourth proportional to 1,383,156.96, 1,908,764.94 and 771,348.39 is: 1,064,465.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,156.96 : 1,908,764.94 = 771,348.39 : x
  2. Step 2: Convert to fraction form
    1,383,156.96/1,908,764.94 = 771,348.39/x
  3. Step 3: Cross multiply
    1,383,156.96x = 1,908,764.94 × 771,348.39
  4. Step 4: Simplify right side
    1,383,156.96x = 1,472,322,763,357.45
  5. Step 5: Solve for x
    x = 1,472,322,763,357.45/1,383,156.96
  6. Step 6: Final answer
    x = 1,064,465.43

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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.