Home / 747,829.29-1,121,891.81-274,518.75

Finding the Fourth Proportional to 747,829.29, 1,121,891.81 and 274,518.75

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Solution

The fourth proportional to 747,829.29, 1,121,891.81 and 274,518.75 is: 411,832.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,829.29 : 1,121,891.81 = 274,518.75 : x
  2. Step 2: Convert to fraction form
    747,829.29/1,121,891.81 = 274,518.75/x
  3. Step 3: Cross multiply
    747,829.29x = 1,121,891.81 × 274,518.75
  4. Step 4: Simplify right side
    747,829.29x = 307,980,335,943.84
  5. Step 5: Solve for x
    x = 307,980,335,943.84/747,829.29
  6. Step 6: Final answer
    x = 411,832.41

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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.