Home / 684,971.92-945,247.09-379,048.11

Finding the Fourth Proportional to 684,971.92, 945,247.09 and 379,048.11

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Solution

The fourth proportional to 684,971.92, 945,247.09 and 379,048.11 is: 523,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,971.92 : 945,247.09 = 379,048.11 : x
  2. Step 2: Convert to fraction form
    684,971.92/945,247.09 = 379,048.11/x
  3. Step 3: Cross multiply
    684,971.92x = 945,247.09 × 379,048.11
  4. Step 4: Simplify right side
    684,971.92x = 358,294,122,947.50
  5. Step 5: Solve for x
    x = 358,294,122,947.50/684,971.92
  6. Step 6: Final answer
    x = 523,078.56

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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.