Home / 787,493.61-1,086,822.81-481,773.60

Finding the Fourth Proportional to 787,493.61, 1,086,822.81 and 481,773.60

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Solution

The fourth proportional to 787,493.61, 1,086,822.81 and 481,773.60 is: 664,897.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,493.61 : 1,086,822.81 = 481,773.60 : x
  2. Step 2: Convert to fraction form
    787,493.61/1,086,822.81 = 481,773.60/x
  3. Step 3: Cross multiply
    787,493.61x = 1,086,822.81 × 481,773.60
  4. Step 4: Simplify right side
    787,493.61x = 523,602,537,735.82
  5. Step 5: Solve for x
    x = 523,602,537,735.82/787,493.61
  6. Step 6: Final answer
    x = 664,897.51

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1.5x scale

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.