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Finding the Fourth Proportional to 768,036.44, 1,059,950.42 and 423,940.70

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Solution

The fourth proportional to 768,036.44, 1,059,950.42 and 423,940.70 is: 585,071.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,036.44 : 1,059,950.42 = 423,940.70 : x
  2. Step 2: Convert to fraction form
    768,036.44/1,059,950.42 = 423,940.70/x
  3. Step 3: Cross multiply
    768,036.44x = 1,059,950.42 × 423,940.70
  4. Step 4: Simplify right side
    768,036.44x = 449,356,123,020.09
  5. Step 5: Solve for x
    x = 449,356,123,020.09/768,036.44
  6. Step 6: Final answer
    x = 585,071.36

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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.