Home / 892,319.09-1,338,281.80-261,282.11

Finding the Fourth Proportional to 892,319.09, 1,338,281.80 and 261,282.11

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Solution

The fourth proportional to 892,319.09, 1,338,281.80 and 261,282.11 is: 391,865.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,319.09 : 1,338,281.80 = 261,282.11 : x
  2. Step 2: Convert to fraction form
    892,319.09/1,338,281.80 = 261,282.11/x
  3. Step 3: Cross multiply
    892,319.09x = 1,338,281.80 × 261,282.11
  4. Step 4: Simplify right side
    892,319.09x = 349,669,085,133.98
  5. Step 5: Solve for x
    x = 349,669,085,133.98/892,319.09
  6. Step 6: Final answer
    x = 391,865.52

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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.