Home / 909,138.52-1,254,614.32-501,231.44

Finding the Fourth Proportional to 909,138.52, 1,254,614.32 and 501,231.44

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Solution

The fourth proportional to 909,138.52, 1,254,614.32 and 501,231.44 is: 691,701.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,138.52 : 1,254,614.32 = 501,231.44 : x
  2. Step 2: Convert to fraction form
    909,138.52/1,254,614.32 = 501,231.44/x
  3. Step 3: Cross multiply
    909,138.52x = 1,254,614.32 × 501,231.44
  4. Step 4: Simplify right side
    909,138.52x = 628,852,142,258.22
  5. Step 5: Solve for x
    x = 628,852,142,258.22/909,138.52
  6. Step 6: Final answer
    x = 691,701.13

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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.