Home / 1,102,767.57-1,521,640.76-689,255.58

Finding the Fourth Proportional to 1,102,767.57, 1,521,640.76 and 689,255.58

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Solution

The fourth proportional to 1,102,767.57, 1,521,640.76 and 689,255.58 is: 951,061.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,767.57 : 1,521,640.76 = 689,255.58 : x
  2. Step 2: Convert to fraction form
    1,102,767.57/1,521,640.76 = 689,255.58/x
  3. Step 3: Cross multiply
    1,102,767.57x = 1,521,640.76 × 689,255.58
  4. Step 4: Simplify right side
    1,102,767.57x = 1,048,799,386,845.32
  5. Step 5: Solve for x
    x = 1,048,799,386,845.32/1,102,767.57
  6. Step 6: Final answer
    x = 951,061.14

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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.