Home / 519,814.20-779,782.05-164,864.10

Finding the Fourth Proportional to 519,814.20, 779,782.05 and 164,864.10

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Solution

The fourth proportional to 519,814.20, 779,782.05 and 164,864.10 is: 247,315.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,814.20 : 779,782.05 = 164,864.10 : x
  2. Step 2: Convert to fraction form
    519,814.20/779,782.05 = 164,864.10/x
  3. Step 3: Cross multiply
    519,814.20x = 779,782.05 × 164,864.10
  4. Step 4: Simplify right side
    519,814.20x = 128,558,065,869.41
  5. Step 5: Solve for x
    x = 128,558,065,869.41/519,814.20
  6. Step 6: Final answer
    x = 247,315.42

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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.