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Finding the Fourth Proportional to 420,570.77, 580,319.24 and 248,464.80

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Solution

The fourth proportional to 420,570.77, 580,319.24 and 248,464.80 is: 342,841.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,570.77 : 580,319.24 = 248,464.80 : x
  2. Step 2: Convert to fraction form
    420,570.77/580,319.24 = 248,464.80/x
  3. Step 3: Cross multiply
    420,570.77x = 580,319.24 × 248,464.80
  4. Step 4: Simplify right side
    420,570.77x = 144,188,902,660.43
  5. Step 5: Solve for x
    x = 144,188,902,660.43/420,570.77
  6. Step 6: Final answer
    x = 342,841.00

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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.