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Finding the Fourth Proportional to 404,652.80, 558,418.14 and 220,890.63

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Solution

The fourth proportional to 404,652.80, 558,418.14 and 220,890.63 is: 304,827.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,652.80 : 558,418.14 = 220,890.63 : x
  2. Step 2: Convert to fraction form
    404,652.80/558,418.14 = 220,890.63/x
  3. Step 3: Cross multiply
    404,652.80x = 558,418.14 × 220,890.63
  4. Step 4: Simplify right side
    404,652.80x = 123,349,334,748.03
  5. Step 5: Solve for x
    x = 123,349,334,748.03/404,652.80
  6. Step 6: Final answer
    x = 304,827.59

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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.