Home / 520,108.20-778,434.30-377,548.20

Finding the Fourth Proportional to 520,108.20, 778,434.30 and 377,548.20

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Solution

The fourth proportional to 520,108.20, 778,434.30 and 377,548.20 is: 565,067.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,108.20 : 778,434.30 = 377,548.20 : x
  2. Step 2: Convert to fraction form
    520,108.20/778,434.30 = 377,548.20/x
  3. Step 3: Cross multiply
    520,108.20x = 778,434.30 × 377,548.20
  4. Step 4: Simplify right side
    520,108.20x = 293,896,468,783.26
  5. Step 5: Solve for x
    x = 293,896,468,783.26/520,108.20
  6. Step 6: Final answer
    x = 565,067.94

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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.