Home / 1,217,971.92-1,680,788.76-674,108.76

Finding the Fourth Proportional to 1,217,971.92, 1,680,788.76 and 674,108.76

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Solution

The fourth proportional to 1,217,971.92, 1,680,788.76 and 674,108.76 is: 930,263.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,971.92 : 1,680,788.76 = 674,108.76 : x
  2. Step 2: Convert to fraction form
    1,217,971.92/1,680,788.76 = 674,108.76/x
  3. Step 3: Cross multiply
    1,217,971.92x = 1,680,788.76 × 674,108.76
  4. Step 4: Simplify right side
    1,217,971.92x = 1,133,034,426,825.54
  5. Step 5: Solve for x
    x = 1,133,034,426,825.54/1,217,971.92
  6. Step 6: Final answer
    x = 930,263.18

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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.