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Finding the Fourth Proportional to 420,539.08, 580,257.30 and 241,656.52

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Solution

The fourth proportional to 420,539.08, 580,257.30 and 241,656.52 is: 333,436.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,539.08 : 580,257.30 = 241,656.52 : x
  2. Step 2: Convert to fraction form
    420,539.08/580,257.30 = 241,656.52/x
  3. Step 3: Cross multiply
    420,539.08x = 580,257.30 × 241,656.52
  4. Step 4: Simplify right side
    420,539.08x = 140,222,959,822.60
  5. Step 5: Solve for x
    x = 140,222,959,822.60/420,539.08
  6. Step 6: Final answer
    x = 333,436.22

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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.