Home / 558,143.64-770,247.90-303,496.38

Finding the Fourth Proportional to 558,143.64, 770,247.90 and 303,496.38

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Solution

The fourth proportional to 558,143.64, 770,247.90 and 303,496.38 is: 418,830.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,143.64 : 770,247.90 = 303,496.38 : x
  2. Step 2: Convert to fraction form
    558,143.64/770,247.90 = 303,496.38/x
  3. Step 3: Cross multiply
    558,143.64x = 770,247.90 × 303,496.38
  4. Step 4: Simplify right side
    558,143.64x = 233,767,449,352.60
  5. Step 5: Solve for x
    x = 233,767,449,352.60/558,143.64
  6. Step 6: Final answer
    x = 418,830.27

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Double scale
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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.