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Finding the Fourth Proportional to 1,383,293, 1,908,944.34 and 747,389

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Solution

The fourth proportional to 1,383,293, 1,908,944.34 and 747,389 is: 1,031,396.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,293 : 1,908,944.34 = 747,389 : x
  2. Step 2: Convert to fraction form
    1,383,293/1,908,944.34 = 747,389/x
  3. Step 3: Cross multiply
    1,383,293x = 1,908,944.34 × 747,389
  4. Step 4: Simplify right side
    1,383,293x = 1,426,724,001,328.26
  5. Step 5: Solve for x
    x = 1,426,724,001,328.26/1,383,293
  6. Step 6: Final answer
    x = 1,031,396.82

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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.