Home / 873,791.47-1,310,248.87-509,171.19

Finding the Fourth Proportional to 873,791.47, 1,310,248.87 and 509,171.19

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Solution

The fourth proportional to 873,791.47, 1,310,248.87 and 509,171.19 is: 763,501.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,791.47 : 1,310,248.87 = 509,171.19 : x
  2. Step 2: Convert to fraction form
    873,791.47/1,310,248.87 = 509,171.19/x
  3. Step 3: Cross multiply
    873,791.47x = 1,310,248.87 × 509,171.19
  4. Step 4: Simplify right side
    873,791.47x = 667,140,974,331.36
  5. Step 5: Solve for x
    x = 667,140,974,331.36/873,791.47
  6. Step 6: Final answer
    x = 763,501.36

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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.