Home / 558,113.14-770,190.78-303,464.38

Finding the Fourth Proportional to 558,113.14, 770,190.78 and 303,464.38

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Solution

The fourth proportional to 558,113.14, 770,190.78 and 303,464.38 is: 418,777.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,113.14 : 770,190.78 = 303,464.38 : x
  2. Step 2: Convert to fraction form
    558,113.14/770,190.78 = 303,464.38/x
  3. Step 3: Cross multiply
    558,113.14x = 770,190.78 × 303,464.38
  4. Step 4: Simplify right side
    558,113.14x = 233,725,467,534.42
  5. Step 5: Solve for x
    x = 233,725,467,534.42/558,113.14
  6. Step 6: Final answer
    x = 418,777.93

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.