Home / 868,485.93-1,302,679.49-261,261.33

Finding the Fourth Proportional to 868,485.93, 1,302,679.49 and 261,261.33

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Solution

The fourth proportional to 868,485.93, 1,302,679.49 and 261,261.33 is: 391,877.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,485.93 : 1,302,679.49 = 261,261.33 : x
  2. Step 2: Convert to fraction form
    868,485.93/1,302,679.49 = 261,261.33/x
  3. Step 3: Cross multiply
    868,485.93x = 1,302,679.49 × 261,261.33
  4. Step 4: Simplify right side
    868,485.93x = 340,339,774,814.82
  5. Step 5: Solve for x
    x = 340,339,774,814.82/868,485.93
  6. Step 6: Final answer
    x = 391,877.13

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Double scale
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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.