Home / 909,611.88-1,255,270.32-501,724.74

Finding the Fourth Proportional to 909,611.88, 1,255,270.32 and 501,724.74

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Solution

The fourth proportional to 909,611.88, 1,255,270.32 and 501,724.74 is: 692,383.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,611.88 : 1,255,270.32 = 501,724.74 : x
  2. Step 2: Convert to fraction form
    909,611.88/1,255,270.32 = 501,724.74/x
  3. Step 3: Cross multiply
    909,611.88x = 1,255,270.32 × 501,724.74
  4. Step 4: Simplify right side
    909,611.88x = 629,800,174,931.72
  5. Step 5: Solve for x
    x = 629,800,174,931.72/909,611.88
  6. Step 6: Final answer
    x = 692,383.41

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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.