Home / 976,855.80-1,463,315.40-657,991.20

Finding the Fourth Proportional to 976,855.80, 1,463,315.40 and 657,991.20

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Solution

The fourth proportional to 976,855.80, 1,463,315.40 and 657,991.20 is: 985,660.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,855.80 : 1,463,315.40 = 657,991.20 : x
  2. Step 2: Convert to fraction form
    976,855.80/1,463,315.40 = 657,991.20/x
  3. Step 3: Cross multiply
    976,855.80x = 1,463,315.40 × 657,991.20
  4. Step 4: Simplify right side
    976,855.80x = 962,848,656,024.48
  5. Step 5: Solve for x
    x = 962,848,656,024.48/976,855.80
  6. Step 6: Final answer
    x = 985,660.99

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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.