Home / 1,207,816.34-1,666,791.94-663,987.10

Finding the Fourth Proportional to 1,207,816.34, 1,666,791.94 and 663,987.10

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Solution

The fourth proportional to 1,207,816.34, 1,666,791.94 and 663,987.10 is: 916,305.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,816.34 : 1,666,791.94 = 663,987.10 : x
  2. Step 2: Convert to fraction form
    1,207,816.34/1,666,791.94 = 663,987.10/x
  3. Step 3: Cross multiply
    1,207,816.34x = 1,666,791.94 × 663,987.10
  4. Step 4: Simplify right side
    1,207,816.34x = 1,106,728,346,543.97
  5. Step 5: Solve for x
    x = 1,106,728,346,543.97/1,207,816.34
  6. Step 6: Final answer
    x = 916,305.16

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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.