Home / 726,836.76-1,090,401.12-253,395

Finding the Fourth Proportional to 726,836.76, 1,090,401.12 and 253,395

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Solution

The fourth proportional to 726,836.76, 1,090,401.12 and 253,395 is: 380,143.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,836.76 : 1,090,401.12 = 253,395 : x
  2. Step 2: Convert to fraction form
    726,836.76/1,090,401.12 = 253,395/x
  3. Step 3: Cross multiply
    726,836.76x = 1,090,401.12 × 253,395
  4. Step 4: Simplify right side
    726,836.76x = 276,302,191,802.40
  5. Step 5: Solve for x
    x = 276,302,191,802.40/726,836.76
  6. Step 6: Final answer
    x = 380,143.39

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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.