Home / 919,607.76-1,379,412.18-254,759.76

Finding the Fourth Proportional to 919,607.76, 1,379,412.18 and 254,759.76

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Solution

The fourth proportional to 919,607.76, 1,379,412.18 and 254,759.76 is: 382,139.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,607.76 : 1,379,412.18 = 254,759.76 : x
  2. Step 2: Convert to fraction form
    919,607.76/1,379,412.18 = 254,759.76/x
  3. Step 3: Cross multiply
    919,607.76x = 1,379,412.18 × 254,759.76
  4. Step 4: Simplify right side
    919,607.76x = 351,418,715,917.88
  5. Step 5: Solve for x
    x = 351,418,715,917.88/919,607.76
  6. Step 6: Final answer
    x = 382,139.79

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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.