Home / 867,381.72-1,301,138.40-268,403.44

Finding the Fourth Proportional to 867,381.72, 1,301,138.40 and 268,403.44

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Solution

The fourth proportional to 867,381.72, 1,301,138.40 and 268,403.44 is: 402,625.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,381.72 : 1,301,138.40 = 268,403.44 : x
  2. Step 2: Convert to fraction form
    867,381.72/1,301,138.40 = 268,403.44/x
  3. Step 3: Cross multiply
    867,381.72x = 1,301,138.40 × 268,403.44
  4. Step 4: Simplify right side
    867,381.72x = 349,230,022,476.10
  5. Step 5: Solve for x
    x = 349,230,022,476.10/867,381.72
  6. Step 6: Final answer
    x = 402,625.53

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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.