Home / 1,224,033.76-1,689,132.78-680,155.48

Finding the Fourth Proportional to 1,224,033.76, 1,689,132.78 and 680,155.48

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Solution

The fourth proportional to 1,224,033.76, 1,689,132.78 and 680,155.48 is: 938,595.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,033.76 : 1,689,132.78 = 680,155.48 : x
  2. Step 2: Convert to fraction form
    1,224,033.76/1,689,132.78 = 680,155.48/x
  3. Step 3: Cross multiply
    1,224,033.76x = 1,689,132.78 × 680,155.48
  4. Step 4: Simplify right side
    1,224,033.76x = 1,148,872,916,764.63
  5. Step 5: Solve for x
    x = 1,148,872,916,764.63/1,224,033.76
  6. Step 6: Final answer
    x = 938,595.78

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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.