Home / 345,622.68-477,020.34-274,545.18

Finding the Fourth Proportional to 345,622.68, 477,020.34 and 274,545.18

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Solution

The fourth proportional to 345,622.68, 477,020.34 and 274,545.18 is: 378,920.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,622.68 : 477,020.34 = 274,545.18 : x
  2. Step 2: Convert to fraction form
    345,622.68/477,020.34 = 274,545.18/x
  3. Step 3: Cross multiply
    345,622.68x = 477,020.34 × 274,545.18
  4. Step 4: Simplify right side
    345,622.68x = 130,963,635,108.96
  5. Step 5: Solve for x
    x = 130,963,635,108.96/345,622.68
  6. Step 6: Final answer
    x = 378,920.84

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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.