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Finding the Fourth Proportional to 660,227.22, 910,741.20 and 384,552.58

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Solution

The fourth proportional to 660,227.22, 910,741.20 and 384,552.58 is: 530,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,227.22 : 910,741.20 = 384,552.58 : x
  2. Step 2: Convert to fraction form
    660,227.22/910,741.20 = 384,552.58/x
  3. Step 3: Cross multiply
    660,227.22x = 910,741.20 × 384,552.58
  4. Step 4: Simplify right side
    660,227.22x = 350,227,876,856.82
  5. Step 5: Solve for x
    x = 350,227,876,856.82/660,227.22
  6. Step 6: Final answer
    x = 530,465.68

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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.