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Finding the Fourth Proportional to 598,391.95, 825,861 and 380,621.83

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Solution

The fourth proportional to 598,391.95, 825,861 and 380,621.83 is: 525,309.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,391.95 : 825,861 = 380,621.83 : x
  2. Step 2: Convert to fraction form
    598,391.95/825,861 = 380,621.83/x
  3. Step 3: Cross multiply
    598,391.95x = 825,861 × 380,621.83
  4. Step 4: Simplify right side
    598,391.95x = 314,340,725,145.63
  5. Step 5: Solve for x
    x = 314,340,725,145.63/598,391.95
  6. Step 6: Final answer
    x = 525,309.08

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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.