Home / 1,302,976.47-1,798,215.24-722,381.76

Finding the Fourth Proportional to 1,302,976.47, 1,798,215.24 and 722,381.76

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Solution

The fourth proportional to 1,302,976.47, 1,798,215.24 and 722,381.76 is: 996,946.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,976.47 : 1,798,215.24 = 722,381.76 : x
  2. Step 2: Convert to fraction form
    1,302,976.47/1,798,215.24 = 722,381.76/x
  3. Step 3: Cross multiply
    1,302,976.47x = 1,798,215.24 × 722,381.76
  4. Step 4: Simplify right side
    1,302,976.47x = 1,298,997,889,930.02
  5. Step 5: Solve for x
    x = 1,298,997,889,930.02/1,302,976.47
  6. Step 6: Final answer
    x = 996,946.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.