Home / 1,272,491.12-1,756,071.34-691,753.32

Finding the Fourth Proportional to 1,272,491.12, 1,756,071.34 and 691,753.32

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Solution

The fourth proportional to 1,272,491.12, 1,756,071.34 and 691,753.32 is: 954,637.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,491.12 : 1,756,071.34 = 691,753.32 : x
  2. Step 2: Convert to fraction form
    1,272,491.12/1,756,071.34 = 691,753.32/x
  3. Step 3: Cross multiply
    1,272,491.12x = 1,756,071.34 × 691,753.32
  4. Step 4: Simplify right side
    1,272,491.12x = 1,214,768,179,601.85
  5. Step 5: Solve for x
    x = 1,214,768,179,601.85/1,272,491.12
  6. Step 6: Final answer
    x = 954,637.84

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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.