Home / 420,622.32-580,390.26-248,516.52

Finding the Fourth Proportional to 420,622.32, 580,390.26 and 248,516.52

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Solution

The fourth proportional to 420,622.32, 580,390.26 and 248,516.52 is: 342,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,622.32 : 580,390.26 = 248,516.52 : x
  2. Step 2: Convert to fraction form
    420,622.32/580,390.26 = 248,516.52/x
  3. Step 3: Cross multiply
    420,622.32x = 580,390.26 × 248,516.52
  4. Step 4: Simplify right side
    420,622.32x = 144,236,567,657.10
  5. Step 5: Solve for x
    x = 144,236,567,657.10/420,622.32
  6. Step 6: Final answer
    x = 342,912.30

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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.