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Finding the Fourth Proportional to 909,982.22, 1,364,973.17 and 310,948.52

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Solution

The fourth proportional to 909,982.22, 1,364,973.17 and 310,948.52 is: 466,422.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,982.22 : 1,364,973.17 = 310,948.52 : x
  2. Step 2: Convert to fraction form
    909,982.22/1,364,973.17 = 310,948.52/x
  3. Step 3: Cross multiply
    909,982.22x = 1,364,973.17 × 310,948.52
  4. Step 4: Simplify right side
    909,982.22x = 424,436,378,671.60
  5. Step 5: Solve for x
    x = 424,436,378,671.60/909,982.22
  6. Step 6: Final answer
    x = 466,422.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.