Home / 1,640,983.89-2,264,671.40-915,972.74

Finding the Fourth Proportional to 1,640,983.89, 2,264,671.40 and 915,972.74

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Solution

The fourth proportional to 1,640,983.89, 2,264,671.40 and 915,972.74 is: 1,264,105.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,983.89 : 2,264,671.40 = 915,972.74 : x
  2. Step 2: Convert to fraction form
    1,640,983.89/2,264,671.40 = 915,972.74/x
  3. Step 3: Cross multiply
    1,640,983.89x = 2,264,671.40 × 915,972.74
  4. Step 4: Simplify right side
    1,640,983.89x = 2,074,377,267,457.64
  5. Step 5: Solve for x
    x = 2,074,377,267,457.64/1,640,983.89
  6. Step 6: Final answer
    x = 1,264,105.81

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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.