Home / 515,029.34-772,886.79-211,672.28

Finding the Fourth Proportional to 515,029.34, 772,886.79 and 211,672.28

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Solution

The fourth proportional to 515,029.34, 772,886.79 and 211,672.28 is: 317,649.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,029.34 : 772,886.79 = 211,672.28 : x
  2. Step 2: Convert to fraction form
    515,029.34/772,886.79 = 211,672.28/x
  3. Step 3: Cross multiply
    515,029.34x = 772,886.79 × 211,672.28
  4. Step 4: Simplify right side
    515,029.34x = 163,598,705,156.75
  5. Step 5: Solve for x
    x = 163,598,705,156.75/515,029.34
  6. Step 6: Final answer
    x = 317,649.29

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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.