Home / 379,454.06-523,626-209,677.26

Finding the Fourth Proportional to 379,454.06, 523,626 and 209,677.26

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Solution

The fourth proportional to 379,454.06, 523,626 and 209,677.26 is: 289,343.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,454.06 : 523,626 = 209,677.26 : x
  2. Step 2: Convert to fraction form
    379,454.06/523,626 = 209,677.26/x
  3. Step 3: Cross multiply
    379,454.06x = 523,626 × 209,677.26
  4. Step 4: Simplify right side
    379,454.06x = 109,792,464,944.76
  5. Step 5: Solve for x
    x = 109,792,464,944.76/379,454.06
  6. Step 6: Final answer
    x = 289,343.23

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1.5x scale

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.