Home / 511,109.20-767,019.53-211,591.35

Finding the Fourth Proportional to 511,109.20, 767,019.53 and 211,591.35

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Solution

The fourth proportional to 511,109.20, 767,019.53 and 211,591.35 is: 317,534.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,109.20 : 767,019.53 = 211,591.35 : x
  2. Step 2: Convert to fraction form
    511,109.20/767,019.53 = 211,591.35/x
  3. Step 3: Cross multiply
    511,109.20x = 767,019.53 × 211,591.35
  4. Step 4: Simplify right side
    511,109.20x = 162,294,697,829.07
  5. Step 5: Solve for x
    x = 162,294,697,829.07/511,109.20
  6. Step 6: Final answer
    x = 317,534.29

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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.