Home / 666,231.98-919,397.45-360,308.72

Finding the Fourth Proportional to 666,231.98, 919,397.45 and 360,308.72

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Solution

The fourth proportional to 666,231.98, 919,397.45 and 360,308.72 is: 497,224.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,231.98 : 919,397.45 = 360,308.72 : x
  2. Step 2: Convert to fraction form
    666,231.98/919,397.45 = 360,308.72/x
  3. Step 3: Cross multiply
    666,231.98x = 919,397.45 × 360,308.72
  4. Step 4: Simplify right side
    666,231.98x = 331,266,918,380.76
  5. Step 5: Solve for x
    x = 331,266,918,380.76/666,231.98
  6. Step 6: Final answer
    x = 497,224.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.