Home / 865,774.50-1,298,599.83-266,673.12

Finding the Fourth Proportional to 865,774.50, 1,298,599.83 and 266,673.12

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Solution

The fourth proportional to 865,774.50, 1,298,599.83 and 266,673.12 is: 399,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,774.50 : 1,298,599.83 = 266,673.12 : x
  2. Step 2: Convert to fraction form
    865,774.50/1,298,599.83 = 266,673.12/x
  3. Step 3: Cross multiply
    865,774.50x = 1,298,599.83 × 266,673.12
  4. Step 4: Simplify right side
    865,774.50x = 346,301,668,297.57
  5. Step 5: Solve for x
    x = 346,301,668,297.57/865,774.50
  6. Step 6: Final answer
    x = 399,990.61

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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.