Home / 1,443,070.91-1,991,302.22-976,976.64

Finding the Fourth Proportional to 1,443,070.91, 1,991,302.22 and 976,976.64

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Solution

The fourth proportional to 1,443,070.91, 1,991,302.22 and 976,976.64 is: 1,348,135.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,070.91 : 1,991,302.22 = 976,976.64 : x
  2. Step 2: Convert to fraction form
    1,443,070.91/1,991,302.22 = 976,976.64/x
  3. Step 3: Cross multiply
    1,443,070.91x = 1,991,302.22 × 976,976.64
  4. Step 4: Simplify right side
    1,443,070.91x = 1,945,455,754,562.58
  5. Step 5: Solve for x
    x = 1,945,455,754,562.58/1,443,070.91
  6. Step 6: Final answer
    x = 1,348,135.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.