Home / 381,821.80-526,971.54-274,746.28

Finding the Fourth Proportional to 381,821.80, 526,971.54 and 274,746.28

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Solution

The fourth proportional to 381,821.80, 526,971.54 and 274,746.28 is: 379,191.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,821.80 : 526,971.54 = 274,746.28 : x
  2. Step 2: Convert to fraction form
    381,821.80/526,971.54 = 274,746.28/x
  3. Step 3: Cross multiply
    381,821.80x = 526,971.54 × 274,746.28
  4. Step 4: Simplify right side
    381,821.80x = 144,783,470,280.87
  5. Step 5: Solve for x
    x = 144,783,470,280.87/381,821.80
  6. Step 6: Final answer
    x = 379,191.21

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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.