Home / 909,713.57-1,255,382.55-501,806.48

Finding the Fourth Proportional to 909,713.57, 1,255,382.55 and 501,806.48

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Solution

The fourth proportional to 909,713.57, 1,255,382.55 and 501,806.48 is: 692,480.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,713.57 : 1,255,382.55 = 501,806.48 : x
  2. Step 2: Convert to fraction form
    909,713.57/1,255,382.55 = 501,806.48/x
  3. Step 3: Cross multiply
    909,713.57x = 1,255,382.55 × 501,806.48
  4. Step 4: Simplify right side
    909,713.57x = 629,959,092,192.01
  5. Step 5: Solve for x
    x = 629,959,092,192.01/909,713.57
  6. Step 6: Final answer
    x = 692,480.71

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1.5x scale

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.