Home / 882,023.72-1,321,366.37-521,115.39

Finding the Fourth Proportional to 882,023.72, 1,321,366.37 and 521,115.39

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Solution

The fourth proportional to 882,023.72, 1,321,366.37 and 521,115.39 is: 780,686.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,023.72 : 1,321,366.37 = 521,115.39 : x
  2. Step 2: Convert to fraction form
    882,023.72/1,321,366.37 = 521,115.39/x
  3. Step 3: Cross multiply
    882,023.72x = 1,321,366.37 × 521,115.39
  4. Step 4: Simplify right side
    882,023.72x = 688,584,348,629.86
  5. Step 5: Solve for x
    x = 688,584,348,629.86/882,023.72
  6. Step 6: Final answer
    x = 780,686.89

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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.