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Finding the Fourth Proportional to 559,499.70, 772,109.70 and 304,850.89

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Solution

The fourth proportional to 559,499.70, 772,109.70 and 304,850.89 is: 420,694.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,499.70 : 772,109.70 = 304,850.89 : x
  2. Step 2: Convert to fraction form
    559,499.70/772,109.70 = 304,850.89/x
  3. Step 3: Cross multiply
    559,499.70x = 772,109.70 × 304,850.89
  4. Step 4: Simplify right side
    559,499.70x = 235,378,325,362.09
  5. Step 5: Solve for x
    x = 235,378,325,362.09/559,499.70
  6. Step 6: Final answer
    x = 420,694.28

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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.