Home / 689,936-1,034,908.72-263,356.80

Finding the Fourth Proportional to 689,936, 1,034,908.72 and 263,356.80

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Solution

The fourth proportional to 689,936, 1,034,908.72 and 263,356.80 is: 395,037.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,936 : 1,034,908.72 = 263,356.80 : x
  2. Step 2: Convert to fraction form
    689,936/1,034,908.72 = 263,356.80/x
  3. Step 3: Cross multiply
    689,936x = 1,034,908.72 × 263,356.80
  4. Step 4: Simplify right side
    689,936x = 272,550,248,791.30
  5. Step 5: Solve for x
    x = 272,550,248,791.30/689,936
  6. Step 6: Final answer
    x = 395,037.00

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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.