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Finding the Fourth Proportional to 404,715.12, 559,003.86 and 303,194.76

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Solution

The fourth proportional to 404,715.12, 559,003.86 and 303,194.76 is: 418,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,715.12 : 559,003.86 = 303,194.76 : x
  2. Step 2: Convert to fraction form
    404,715.12/559,003.86 = 303,194.76/x
  3. Step 3: Cross multiply
    404,715.12x = 559,003.86 × 303,194.76
  4. Step 4: Simplify right side
    404,715.12x = 169,487,041,171.77
  5. Step 5: Solve for x
    x = 169,487,041,171.77/404,715.12
  6. Step 6: Final answer
    x = 418,781.10

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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.