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Finding the Fourth Proportional to 403,334.80, 604,856.40 and 203,588.80

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Solution

The fourth proportional to 403,334.80, 604,856.40 and 203,588.80 is: 305,309.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,334.80 : 604,856.40 = 203,588.80 : x
  2. Step 2: Convert to fraction form
    403,334.80/604,856.40 = 203,588.80/x
  3. Step 3: Cross multiply
    403,334.80x = 604,856.40 × 203,588.80
  4. Step 4: Simplify right side
    403,334.80x = 123,141,988,648.32
  5. Step 5: Solve for x
    x = 123,141,988,648.32/403,334.80
  6. Step 6: Final answer
    x = 305,309.61

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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.