Home / 492,650.20-679,799.51-277,777.45

Finding the Fourth Proportional to 492,650.20, 679,799.51 and 277,777.45

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Solution

The fourth proportional to 492,650.20, 679,799.51 and 277,777.45 is: 383,300.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,650.20 : 679,799.51 = 277,777.45 : x
  2. Step 2: Convert to fraction form
    492,650.20/679,799.51 = 277,777.45/x
  3. Step 3: Cross multiply
    492,650.20x = 679,799.51 × 277,777.45
  4. Step 4: Simplify right side
    492,650.20x = 188,832,971,000.05
  5. Step 5: Solve for x
    x = 188,832,971,000.05/492,650.20
  6. Step 6: Final answer
    x = 383,300.31

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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.