Home / 511,734.48-767,273.25-212,421.66

Finding the Fourth Proportional to 511,734.48, 767,273.25 and 212,421.66

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Solution

The fourth proportional to 511,734.48, 767,273.25 and 212,421.66 is: 318,496.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,734.48 : 767,273.25 = 212,421.66 : x
  2. Step 2: Convert to fraction form
    511,734.48/767,273.25 = 212,421.66/x
  3. Step 3: Cross multiply
    511,734.48x = 767,273.25 × 212,421.66
  4. Step 4: Simplify right side
    511,734.48x = 162,985,457,438.60
  5. Step 5: Solve for x
    x = 162,985,457,438.60/511,734.48
  6. Step 6: Final answer
    x = 318,496.14

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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.