Home / 1,307,247.56-1,803,721.77-763,136.42

Finding the Fourth Proportional to 1,307,247.56, 1,803,721.77 and 763,136.42

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Solution

The fourth proportional to 1,307,247.56, 1,803,721.77 and 763,136.42 is: 1,052,964.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,247.56 : 1,803,721.77 = 763,136.42 : x
  2. Step 2: Convert to fraction form
    1,307,247.56/1,803,721.77 = 763,136.42/x
  3. Step 3: Cross multiply
    1,307,247.56x = 1,803,721.77 × 763,136.42
  4. Step 4: Simplify right side
    1,307,247.56x = 1,376,485,774,233.86
  5. Step 5: Solve for x
    x = 1,376,485,774,233.86/1,307,247.56
  6. Step 6: Final answer
    x = 1,052,964.88

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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.