Home / 514,939.20-772,408.80-304,814.40

Finding the Fourth Proportional to 514,939.20, 772,408.80 and 304,814.40

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Solution

The fourth proportional to 514,939.20, 772,408.80 and 304,814.40 is: 457,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,939.20 : 772,408.80 = 304,814.40 : x
  2. Step 2: Convert to fraction form
    514,939.20/772,408.80 = 304,814.40/x
  3. Step 3: Cross multiply
    514,939.20x = 772,408.80 × 304,814.40
  4. Step 4: Simplify right side
    514,939.20x = 235,441,324,926.72
  5. Step 5: Solve for x
    x = 235,441,324,926.72/514,939.20
  6. Step 6: Final answer
    x = 457,221.60

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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.