Home / 1,321,001.64-1,822,982.25-717,389.64

Finding the Fourth Proportional to 1,321,001.64, 1,822,982.25 and 717,389.64

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Solution

The fourth proportional to 1,321,001.64, 1,822,982.25 and 717,389.64 is: 989,997.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,001.64 : 1,822,982.25 = 717,389.64 : x
  2. Step 2: Convert to fraction form
    1,321,001.64/1,822,982.25 = 717,389.64/x
  3. Step 3: Cross multiply
    1,321,001.64x = 1,822,982.25 × 717,389.64
  4. Step 4: Simplify right side
    1,321,001.64x = 1,307,788,580,053.89
  5. Step 5: Solve for x
    x = 1,307,788,580,053.89/1,321,001.64
  6. Step 6: Final answer
    x = 989,997.70

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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.