Home / 876,021.20-1,314,031.80-515,822.30

Finding the Fourth Proportional to 876,021.20, 1,314,031.80 and 515,822.30

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Solution

The fourth proportional to 876,021.20, 1,314,031.80 and 515,822.30 is: 773,733.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,021.20 : 1,314,031.80 = 515,822.30 : x
  2. Step 2: Convert to fraction form
    876,021.20/1,314,031.80 = 515,822.30/x
  3. Step 3: Cross multiply
    876,021.20x = 1,314,031.80 × 515,822.30
  4. Step 4: Simplify right side
    876,021.20x = 677,806,905,349.14
  5. Step 5: Solve for x
    x = 677,806,905,349.14/876,021.20
  6. Step 6: Final answer
    x = 773,733.45

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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.