Home / 818,420.58-1,129,029.23-635,883.30

Finding the Fourth Proportional to 818,420.58, 1,129,029.23 and 635,883.30

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Solution

The fourth proportional to 818,420.58, 1,129,029.23 and 635,883.30 is: 877,215.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,420.58 : 1,129,029.23 = 635,883.30 : x
  2. Step 2: Convert to fraction form
    818,420.58/1,129,029.23 = 635,883.30/x
  3. Step 3: Cross multiply
    818,420.58x = 1,129,029.23 × 635,883.30
  4. Step 4: Simplify right side
    818,420.58x = 717,930,834,158.57
  5. Step 5: Solve for x
    x = 717,930,834,158.57/818,420.58
  6. Step 6: Final answer
    x = 877,215.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.