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Finding the Fourth Proportional to 662,653.40, 994,757.70 and 657,987.80

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Solution

The fourth proportional to 662,653.40, 994,757.70 and 657,987.80 is: 987,753.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,653.40 : 994,757.70 = 657,987.80 : x
  2. Step 2: Convert to fraction form
    662,653.40/994,757.70 = 657,987.80/x
  3. Step 3: Cross multiply
    662,653.40x = 994,757.70 × 657,987.80
  4. Step 4: Simplify right side
    662,653.40x = 654,538,430,556.06
  5. Step 5: Solve for x
    x = 654,538,430,556.06/662,653.40
  6. Step 6: Final answer
    x = 987,753.83

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1.5x scale

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.