Home / 872,167.80-1,307,279.70-339,511.80

Finding the Fourth Proportional to 872,167.80, 1,307,279.70 and 339,511.80

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Solution

The fourth proportional to 872,167.80, 1,307,279.70 and 339,511.80 is: 508,889.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,167.80 : 1,307,279.70 = 339,511.80 : x
  2. Step 2: Convert to fraction form
    872,167.80/1,307,279.70 = 339,511.80/x
  3. Step 3: Cross multiply
    872,167.80x = 1,307,279.70 × 339,511.80
  4. Step 4: Simplify right side
    872,167.80x = 443,836,884,050.46
  5. Step 5: Solve for x
    x = 443,836,884,050.46/872,167.80
  6. Step 6: Final answer
    x = 508,889.33

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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.