Home / 723,561.72-1,085,347.44-218,124.15

Finding the Fourth Proportional to 723,561.72, 1,085,347.44 and 218,124.15

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Solution

The fourth proportional to 723,561.72, 1,085,347.44 and 218,124.15 is: 327,187.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,561.72 : 1,085,347.44 = 218,124.15 : x
  2. Step 2: Convert to fraction form
    723,561.72/1,085,347.44 = 218,124.15/x
  3. Step 3: Cross multiply
    723,561.72x = 1,085,347.44 × 218,124.15
  4. Step 4: Simplify right side
    723,561.72x = 236,740,487,804.68
  5. Step 5: Solve for x
    x = 236,740,487,804.68/723,561.72
  6. Step 6: Final answer
    x = 327,187.69

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Double scale
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Similar ratio
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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.