Home / 917,175.96-1,375,295.50-538,835.76

Finding the Fourth Proportional to 917,175.96, 1,375,295.50 and 538,835.76

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Solution

The fourth proportional to 917,175.96, 1,375,295.50 and 538,835.76 is: 807,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,175.96 : 1,375,295.50 = 538,835.76 : x
  2. Step 2: Convert to fraction form
    917,175.96/1,375,295.50 = 538,835.76/x
  3. Step 3: Cross multiply
    917,175.96x = 1,375,295.50 × 538,835.76
  4. Step 4: Simplify right side
    917,175.96x = 741,058,395,967.08
  5. Step 5: Solve for x
    x = 741,058,395,967.08/917,175.96
  6. Step 6: Final answer
    x = 807,978.43

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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.