Home / 909,834-1,255,165.20-527,639.28

Finding the Fourth Proportional to 909,834, 1,255,165.20 and 527,639.28

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Solution

The fourth proportional to 909,834, 1,255,165.20 and 527,639.28 is: 727,906.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,834 : 1,255,165.20 = 527,639.28 : x
  2. Step 2: Convert to fraction form
    909,834/1,255,165.20 = 527,639.28/x
  3. Step 3: Cross multiply
    909,834x = 1,255,165.20 × 527,639.28
  4. Step 4: Simplify right side
    909,834x = 662,274,462,409.06
  5. Step 5: Solve for x
    x = 662,274,462,409.06/909,834
  6. Step 6: Final answer
    x = 727,906.92

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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.