Home / 1,217,902.40-1,680,663.75-674,061.20

Finding the Fourth Proportional to 1,217,902.40, 1,680,663.75 and 674,061.20

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Solution

The fourth proportional to 1,217,902.40, 1,680,663.75 and 674,061.20 is: 930,181.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,902.40 : 1,680,663.75 = 674,061.20 : x
  2. Step 2: Convert to fraction form
    1,217,902.40/1,680,663.75 = 674,061.20/x
  3. Step 3: Cross multiply
    1,217,902.40x = 1,680,663.75 × 674,061.20
  4. Step 4: Simplify right side
    1,217,902.40x = 1,132,870,224,121.50
  5. Step 5: Solve for x
    x = 1,132,870,224,121.50/1,217,902.40
  6. Step 6: Final answer
    x = 930,181.45

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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.