Home / 515,328.19-772,996.40-211,644.11

Finding the Fourth Proportional to 515,328.19, 772,996.40 and 211,644.11

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Solution

The fourth proportional to 515,328.19, 772,996.40 and 211,644.11 is: 317,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,328.19 : 772,996.40 = 211,644.11 : x
  2. Step 2: Convert to fraction form
    515,328.19/772,996.40 = 211,644.11/x
  3. Step 3: Cross multiply
    515,328.19x = 772,996.40 × 211,644.11
  4. Step 4: Simplify right side
    515,328.19x = 163,600,132,431.04
  5. Step 5: Solve for x
    x = 163,600,132,431.04/515,328.19
  6. Step 6: Final answer
    x = 317,467.85

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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.