Home / 1,108,763.47-1,529,979.33-818,529.40

Finding the Fourth Proportional to 1,108,763.47, 1,529,979.33 and 818,529.40

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Solution

The fourth proportional to 1,108,763.47, 1,529,979.33 and 818,529.40 is: 1,129,486.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,763.47 : 1,529,979.33 = 818,529.40 : x
  2. Step 2: Convert to fraction form
    1,108,763.47/1,529,979.33 = 818,529.40/x
  3. Step 3: Cross multiply
    1,108,763.47x = 1,529,979.33 × 818,529.40
  4. Step 4: Simplify right side
    1,108,763.47x = 1,252,333,062,997.30
  5. Step 5: Solve for x
    x = 1,252,333,062,997.30/1,108,763.47
  6. Step 6: Final answer
    x = 1,129,486.22

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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.