Home / 689,175.14-1,034,041.55-309,830.27

Finding the Fourth Proportional to 689,175.14, 1,034,041.55 and 309,830.27

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Solution

The fourth proportional to 689,175.14, 1,034,041.55 and 309,830.27 is: 464,870.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,175.14 : 1,034,041.55 = 309,830.27 : x
  2. Step 2: Convert to fraction form
    689,175.14/1,034,041.55 = 309,830.27/x
  3. Step 3: Cross multiply
    689,175.14x = 1,034,041.55 × 309,830.27
  4. Step 4: Simplify right side
    689,175.14x = 320,377,365,908.36
  5. Step 5: Solve for x
    x = 320,377,365,908.36/689,175.14
  6. Step 6: Final answer
    x = 464,870.76

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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.