Home / 909,718.75-1,255,389.71-501,811.66

Finding the Fourth Proportional to 909,718.75, 1,255,389.71 and 501,811.66

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Solution

The fourth proportional to 909,718.75, 1,255,389.71 and 501,811.66 is: 692,487.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,718.75 : 1,255,389.71 = 501,811.66 : x
  2. Step 2: Convert to fraction form
    909,718.75/1,255,389.71 = 501,811.66/x
  3. Step 3: Cross multiply
    909,718.75x = 1,255,389.71 × 501,811.66
  4. Step 4: Simplify right side
    909,718.75x = 629,969,194,322.02
  5. Step 5: Solve for x
    x = 629,969,194,322.02/909,718.75
  6. Step 6: Final answer
    x = 692,487.86

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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.