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Finding the Fourth Proportional to 522,596.20, 721,181.58 and 290,058.77

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Solution

The fourth proportional to 522,596.20, 721,181.58 and 290,058.77 is: 400,280.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,596.20 : 721,181.58 = 290,058.77 : x
  2. Step 2: Convert to fraction form
    522,596.20/721,181.58 = 290,058.77/x
  3. Step 3: Cross multiply
    522,596.20x = 721,181.58 × 290,058.77
  4. Step 4: Simplify right side
    522,596.20x = 209,185,043,844.41
  5. Step 5: Solve for x
    x = 209,185,043,844.41/522,596.20
  6. Step 6: Final answer
    x = 400,280.46

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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.