Home / 876,398.35-1,314,742.81-307,631.87

Finding the Fourth Proportional to 876,398.35, 1,314,742.81 and 307,631.87

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Solution

The fourth proportional to 876,398.35, 1,314,742.81 and 307,631.87 is: 461,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,398.35 : 1,314,742.81 = 307,631.87 : x
  2. Step 2: Convert to fraction form
    876,398.35/1,314,742.81 = 307,631.87/x
  3. Step 3: Cross multiply
    876,398.35x = 1,314,742.81 × 307,631.87
  4. Step 4: Simplify right side
    876,398.35x = 404,456,789,209.36
  5. Step 5: Solve for x
    x = 404,456,789,209.36/876,398.35
  6. Step 6: Final answer
    x = 461,498.80

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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.