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Finding the Fourth Proportional to 990,800.16, 1,367,871 and 652,252.56

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Solution

The fourth proportional to 990,800.16, 1,367,871 and 652,252.56 is: 900,481.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,800.16 : 1,367,871 = 652,252.56 : x
  2. Step 2: Convert to fraction form
    990,800.16/1,367,871 = 652,252.56/x
  3. Step 3: Cross multiply
    990,800.16x = 1,367,871 × 652,252.56
  4. Step 4: Simplify right side
    990,800.16x = 892,197,361,499.76
  5. Step 5: Solve for x
    x = 892,197,361,499.76/990,800.16
  6. Step 6: Final answer
    x = 900,481.65

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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.