Home / 872,301.20-1,307,676.36-339,699.20

Finding the Fourth Proportional to 872,301.20, 1,307,676.36 and 339,699.20

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Solution

The fourth proportional to 872,301.20, 1,307,676.36 and 339,699.20 is: 509,246.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,301.20 : 1,307,676.36 = 339,699.20 : x
  2. Step 2: Convert to fraction form
    872,301.20/1,307,676.36 = 339,699.20/x
  3. Step 3: Cross multiply
    872,301.20x = 1,307,676.36 × 339,699.20
  4. Step 4: Simplify right side
    872,301.20x = 444,216,613,350.91
  5. Step 5: Solve for x
    x = 444,216,613,350.91/872,301.20
  6. Step 6: Final answer
    x = 509,246.82

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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.