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Finding the Fourth Proportional to 604,659.30, 906,988.95 and 220,437

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Solution

The fourth proportional to 604,659.30, 906,988.95 and 220,437 is: 330,655.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,659.30 : 906,988.95 = 220,437 : x
  2. Step 2: Convert to fraction form
    604,659.30/906,988.95 = 220,437/x
  3. Step 3: Cross multiply
    604,659.30x = 906,988.95 × 220,437
  4. Step 4: Simplify right side
    604,659.30x = 199,933,923,171.15
  5. Step 5: Solve for x
    x = 199,933,923,171.15/604,659.30
  6. Step 6: Final answer
    x = 330,655.50

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.