Home / 919,612.76-1,379,419.70-254,764.76

Finding the Fourth Proportional to 919,612.76, 1,379,419.70 and 254,764.76

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Solution

The fourth proportional to 919,612.76, 1,379,419.70 and 254,764.76 is: 382,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,612.76 : 1,379,419.70 = 254,764.76 : x
  2. Step 2: Convert to fraction form
    919,612.76/1,379,419.70 = 254,764.76/x
  3. Step 3: Cross multiply
    919,612.76x = 1,379,419.70 × 254,764.76
  4. Step 4: Simplify right side
    919,612.76x = 351,427,528,809.77
  5. Step 5: Solve for x
    x = 351,427,528,809.77/919,612.76
  6. Step 6: Final answer
    x = 382,147.30

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Double scale
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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.