Home / 865,871.05-1,298,948.73-266,832.31

Finding the Fourth Proportional to 865,871.05, 1,298,948.73 and 266,832.31

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Solution

The fourth proportional to 865,871.05, 1,298,948.73 and 266,832.31 is: 400,292.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,871.05 : 1,298,948.73 = 266,832.31 : x
  2. Step 2: Convert to fraction form
    865,871.05/1,298,948.73 = 266,832.31/x
  3. Step 3: Cross multiply
    865,871.05x = 1,298,948.73 × 266,832.31
  4. Step 4: Simplify right side
    865,871.05x = 346,601,490,197.47
  5. Step 5: Solve for x
    x = 346,601,490,197.47/865,871.05
  6. Step 6: Final answer
    x = 400,292.27

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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.