Home / 1,404,712.89-1,938,512.79-823,817.61

Finding the Fourth Proportional to 1,404,712.89, 1,938,512.79 and 823,817.61

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Solution

The fourth proportional to 1,404,712.89, 1,938,512.79 and 823,817.61 is: 1,136,873.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,712.89 : 1,938,512.79 = 823,817.61 : x
  2. Step 2: Convert to fraction form
    1,404,712.89/1,938,512.79 = 823,817.61/x
  3. Step 3: Cross multiply
    1,404,712.89x = 1,938,512.79 × 823,817.61
  4. Step 4: Simplify right side
    1,404,712.89x = 1,596,980,973,612.23
  5. Step 5: Solve for x
    x = 1,596,980,973,612.23/1,404,712.89
  6. Step 6: Final answer
    x = 1,136,873.58

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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.