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Finding the Fourth Proportional to 909,846, 1,255,181.76 and 527,651.28

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Solution

The fourth proportional to 909,846, 1,255,181.76 and 527,651.28 is: 727,923.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,846 : 1,255,181.76 = 527,651.28 : x
  2. Step 2: Convert to fraction form
    909,846/1,255,181.76 = 527,651.28/x
  3. Step 3: Cross multiply
    909,846x = 1,255,181.76 × 527,651.28
  4. Step 4: Simplify right side
    909,846x = 662,298,262,296.65
  5. Step 5: Solve for x
    x = 662,298,262,296.65/909,846
  6. Step 6: Final answer
    x = 727,923.48

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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.