Home / 1,092,145.80-1,638,218.70-976,672.20

Finding the Fourth Proportional to 1,092,145.80, 1,638,218.70 and 976,672.20

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Solution

The fourth proportional to 1,092,145.80, 1,638,218.70 and 976,672.20 is: 1,465,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,145.80 : 1,638,218.70 = 976,672.20 : x
  2. Step 2: Convert to fraction form
    1,092,145.80/1,638,218.70 = 976,672.20/x
  3. Step 3: Cross multiply
    1,092,145.80x = 1,638,218.70 × 976,672.20
  4. Step 4: Simplify right side
    1,092,145.80x = 1,600,002,661,810.14
  5. Step 5: Solve for x
    x = 1,600,002,661,810.14/1,092,145.80
  6. Step 6: Final answer
    x = 1,465,008.30

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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.