Home / 987,999.12-1,477,939.04-788,708.76

Finding the Fourth Proportional to 987,999.12, 1,477,939.04 and 788,708.76

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Solution

The fourth proportional to 987,999.12, 1,477,939.04 and 788,708.76 is: 1,179,822.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,999.12 : 1,477,939.04 = 788,708.76 : x
  2. Step 2: Convert to fraction form
    987,999.12/1,477,939.04 = 788,708.76/x
  3. Step 3: Cross multiply
    987,999.12x = 1,477,939.04 × 788,708.76
  4. Step 4: Simplify right side
    987,999.12x = 1,165,663,467,593.99
  5. Step 5: Solve for x
    x = 1,165,663,467,593.99/987,999.12
  6. Step 6: Final answer
    x = 1,179,822.37

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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.