Home / 991,872.81-1,489,553.55-977,673.51

Finding the Fourth Proportional to 991,872.81, 1,489,553.55 and 977,673.51

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Solution

The fourth proportional to 991,872.81, 1,489,553.55 and 977,673.51 is: 1,468,229.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,872.81 : 1,489,553.55 = 977,673.51 : x
  2. Step 2: Convert to fraction form
    991,872.81/1,489,553.55 = 977,673.51/x
  3. Step 3: Cross multiply
    991,872.81x = 1,489,553.55 × 977,673.51
  4. Step 4: Simplify right side
    991,872.81x = 1,456,297,047,561.46
  5. Step 5: Solve for x
    x = 1,456,297,047,561.46/991,872.81
  6. Step 6: Final answer
    x = 1,468,229.63

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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.