Home / 814,262.40-1,221,379.20-334,386.24

Finding the Fourth Proportional to 814,262.40, 1,221,379.20 and 334,386.24

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Solution

The fourth proportional to 814,262.40, 1,221,379.20 and 334,386.24 is: 501,573.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,262.40 : 1,221,379.20 = 334,386.24 : x
  2. Step 2: Convert to fraction form
    814,262.40/1,221,379.20 = 334,386.24/x
  3. Step 3: Cross multiply
    814,262.40x = 1,221,379.20 × 334,386.24
  4. Step 4: Simplify right side
    814,262.40x = 408,412,398,302.21
  5. Step 5: Solve for x
    x = 408,412,398,302.21/814,262.40
  6. Step 6: Final answer
    x = 501,573.45

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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.