Home / 680,845.52-939,568.20-379,050.32

Finding the Fourth Proportional to 680,845.52, 939,568.20 and 379,050.32

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Solution

The fourth proportional to 680,845.52, 939,568.20 and 379,050.32 is: 523,090.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,845.52 : 939,568.20 = 379,050.32 : x
  2. Step 2: Convert to fraction form
    680,845.52/939,568.20 = 379,050.32/x
  3. Step 3: Cross multiply
    680,845.52x = 939,568.20 × 379,050.32
  4. Step 4: Simplify right side
    680,845.52x = 356,143,626,871.82
  5. Step 5: Solve for x
    x = 356,143,626,871.82/680,845.52
  6. Step 6: Final answer
    x = 523,090.21

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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.