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Finding the Fourth Proportional to 662,651.40, 994,754.70 and 657,985.80

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Solution

The fourth proportional to 662,651.40, 994,754.70 and 657,985.80 is: 987,750.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,651.40 : 994,754.70 = 657,985.80 : x
  2. Step 2: Convert to fraction form
    662,651.40/994,754.70 = 657,985.80/x
  3. Step 3: Cross multiply
    662,651.40x = 994,754.70 × 657,985.80
  4. Step 4: Simplify right side
    662,651.40x = 654,534,467,083.26
  5. Step 5: Solve for x
    x = 654,534,467,083.26/662,651.40
  6. Step 6: Final answer
    x = 987,750.83

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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.