Home / 826,484.19-1,239,244.59-320,454

Finding the Fourth Proportional to 826,484.19, 1,239,244.59 and 320,454

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Solution

The fourth proportional to 826,484.19, 1,239,244.59 and 320,454 is: 480,494.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,484.19 : 1,239,244.59 = 320,454 : x
  2. Step 2: Convert to fraction form
    826,484.19/1,239,244.59 = 320,454/x
  3. Step 3: Cross multiply
    826,484.19x = 1,239,244.59 × 320,454
  4. Step 4: Simplify right side
    826,484.19x = 397,120,885,843.86
  5. Step 5: Solve for x
    x = 397,120,885,843.86/826,484.19
  6. Step 6: Final answer
    x = 480,494.23

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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.