Home / 1,188,748.38-1,640,472.78-679,461.69

Finding the Fourth Proportional to 1,188,748.38, 1,640,472.78 and 679,461.69

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Solution

The fourth proportional to 1,188,748.38, 1,640,472.78 and 679,461.69 is: 937,657.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,748.38 : 1,640,472.78 = 679,461.69 : x
  2. Step 2: Convert to fraction form
    1,188,748.38/1,640,472.78 = 679,461.69/x
  3. Step 3: Cross multiply
    1,188,748.38x = 1,640,472.78 × 679,461.69
  4. Step 4: Simplify right side
    1,188,748.38x = 1,114,638,407,497.80
  5. Step 5: Solve for x
    x = 1,114,638,407,497.80/1,188,748.38
  6. Step 6: Final answer
    x = 937,657.14

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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.