Home / 909,756.41-1,255,076.57-667,618.25

Finding the Fourth Proportional to 909,756.41, 1,255,076.57 and 667,618.25

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Solution

The fourth proportional to 909,756.41, 1,255,076.57 and 667,618.25 is: 921,028.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,756.41 : 1,255,076.57 = 667,618.25 : x
  2. Step 2: Convert to fraction form
    909,756.41/1,255,076.57 = 667,618.25/x
  3. Step 3: Cross multiply
    909,756.41x = 1,255,076.57 × 667,618.25
  4. Step 4: Simplify right side
    909,756.41x = 837,912,013,665.93
  5. Step 5: Solve for x
    x = 837,912,013,665.93/909,756.41
  6. Step 6: Final answer
    x = 921,028.98

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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.