Home / 1,279,118.28-1,765,240.38-735,430.44

Finding the Fourth Proportional to 1,279,118.28, 1,765,240.38 and 735,430.44

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Solution

The fourth proportional to 1,279,118.28, 1,765,240.38 and 735,430.44 is: 1,014,926.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,118.28 : 1,765,240.38 = 735,430.44 : x
  2. Step 2: Convert to fraction form
    1,279,118.28/1,765,240.38 = 735,430.44/x
  3. Step 3: Cross multiply
    1,279,118.28x = 1,765,240.38 × 735,430.44
  4. Step 4: Simplify right side
    1,279,118.28x = 1,298,211,509,369.17
  5. Step 5: Solve for x
    x = 1,298,211,509,369.17/1,279,118.28
  6. Step 6: Final answer
    x = 1,014,926.87

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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.