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Finding the Fourth Proportional to 503,805.06, 756,757.35 and 425,073.06

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Solution

The fourth proportional to 503,805.06, 756,757.35 and 425,073.06 is: 638,495.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,805.06 : 756,757.35 = 425,073.06 : x
  2. Step 2: Convert to fraction form
    503,805.06/756,757.35 = 425,073.06/x
  3. Step 3: Cross multiply
    503,805.06x = 756,757.35 × 425,073.06
  4. Step 4: Simplify right side
    503,805.06x = 321,677,162,441.99
  5. Step 5: Solve for x
    x = 321,677,162,441.99/503,805.06
  6. Step 6: Final answer
    x = 638,495.30

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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.