Home / 909,717.75-1,255,388.33-501,810.66

Finding the Fourth Proportional to 909,717.75, 1,255,388.33 and 501,810.66

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Solution

The fourth proportional to 909,717.75, 1,255,388.33 and 501,810.66 is: 692,486.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,717.75 : 1,255,388.33 = 501,810.66 : x
  2. Step 2: Convert to fraction form
    909,717.75/1,255,388.33 = 501,810.66/x
  3. Step 3: Cross multiply
    909,717.75x = 1,255,388.33 × 501,810.66
  4. Step 4: Simplify right side
    909,717.75x = 629,967,246,433.60
  5. Step 5: Solve for x
    x = 629,967,246,433.60/909,717.75
  6. Step 6: Final answer
    x = 692,486.48

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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.