Home / 461,539.20-692,308.80-212,707.20

Finding the Fourth Proportional to 461,539.20, 692,308.80 and 212,707.20

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Solution

The fourth proportional to 461,539.20, 692,308.80 and 212,707.20 is: 319,060.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,539.20 : 692,308.80 = 212,707.20 : x
  2. Step 2: Convert to fraction form
    461,539.20/692,308.80 = 212,707.20/x
  3. Step 3: Cross multiply
    461,539.20x = 692,308.80 × 212,707.20
  4. Step 4: Simplify right side
    461,539.20x = 147,259,066,383.36
  5. Step 5: Solve for x
    x = 147,259,066,383.36/461,539.20
  6. Step 6: Final answer
    x = 319,060.80

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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.