Home / 763,743.29-1,145,175.91-314,774.06

Finding the Fourth Proportional to 763,743.29, 1,145,175.91 and 314,774.06

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Solution

The fourth proportional to 763,743.29, 1,145,175.91 and 314,774.06 is: 471,980.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,743.29 : 1,145,175.91 = 314,774.06 : x
  2. Step 2: Convert to fraction form
    763,743.29/1,145,175.91 = 314,774.06/x
  3. Step 3: Cross multiply
    763,743.29x = 1,145,175.91 × 314,774.06
  4. Step 4: Simplify right side
    763,743.29x = 360,471,664,092.08
  5. Step 5: Solve for x
    x = 360,471,664,092.08/763,743.29
  6. Step 6: Final answer
    x = 471,980.14

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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.