Home / 526,726.26-726,880.20-285,009.30

Finding the Fourth Proportional to 526,726.26, 726,880.20 and 285,009.30

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Solution

The fourth proportional to 526,726.26, 726,880.20 and 285,009.30 is: 393,311.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,726.26 : 726,880.20 = 285,009.30 : x
  2. Step 2: Convert to fraction form
    526,726.26/726,880.20 = 285,009.30/x
  3. Step 3: Cross multiply
    526,726.26x = 726,880.20 × 285,009.30
  4. Step 4: Simplify right side
    526,726.26x = 207,167,616,985.86
  5. Step 5: Solve for x
    x = 207,167,616,985.86/526,726.26
  6. Step 6: Final answer
    x = 393,311.73

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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.