Home / 1,207,213.02-1,665,953.44-663,383.88

Finding the Fourth Proportional to 1,207,213.02, 1,665,953.44 and 663,383.88

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Solution

The fourth proportional to 1,207,213.02, 1,665,953.44 and 663,383.88 is: 915,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,213.02 : 1,665,953.44 = 663,383.88 : x
  2. Step 2: Convert to fraction form
    1,207,213.02/1,665,953.44 = 663,383.88/x
  3. Step 3: Cross multiply
    1,207,213.02x = 1,665,953.44 × 663,383.88
  4. Step 4: Simplify right side
    1,207,213.02x = 1,105,166,656,926.55
  5. Step 5: Solve for x
    x = 1,105,166,656,926.55/1,207,213.02
  6. Step 6: Final answer
    x = 915,469.46

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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.