Home / 918,215.75-1,377,403.01-253,367.75

Finding the Fourth Proportional to 918,215.75, 1,377,403.01 and 253,367.75

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Solution

The fourth proportional to 918,215.75, 1,377,403.01 and 253,367.75 is: 380,073.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,215.75 : 1,377,403.01 = 253,367.75 : x
  2. Step 2: Convert to fraction form
    918,215.75/1,377,403.01 = 253,367.75/x
  3. Step 3: Cross multiply
    918,215.75x = 1,377,403.01 × 253,367.75
  4. Step 4: Simplify right side
    918,215.75x = 348,989,501,486.93
  5. Step 5: Solve for x
    x = 348,989,501,486.93/918,215.75
  6. Step 6: Final answer
    x = 380,073.53

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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.