Home / 892,307.72-1,338,461.55-261,221.54

Finding the Fourth Proportional to 892,307.72, 1,338,461.55 and 261,221.54

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Solution

The fourth proportional to 892,307.72, 1,338,461.55 and 261,221.54 is: 391,832.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,307.72 : 1,338,461.55 = 261,221.54 : x
  2. Step 2: Convert to fraction form
    892,307.72/1,338,461.55 = 261,221.54/x
  3. Step 3: Cross multiply
    892,307.72x = 1,338,461.55 × 261,221.54
  4. Step 4: Simplify right side
    892,307.72x = 349,634,980,629.48
  5. Step 5: Solve for x
    x = 349,634,980,629.48/892,307.72
  6. Step 6: Final answer
    x = 391,832.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.