Home / 1,820,971.92-2,512,941.76-1,005,176.14

Finding the Fourth Proportional to 1,820,971.92, 2,512,941.76 and 1,005,176.14

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Solution

The fourth proportional to 1,820,971.92, 2,512,941.76 and 1,005,176.14 is: 1,387,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,971.92 : 2,512,941.76 = 1,005,176.14 : x
  2. Step 2: Convert to fraction form
    1,820,971.92/2,512,941.76 = 1,005,176.14/x
  3. Step 3: Cross multiply
    1,820,971.92x = 2,512,941.76 × 1,005,176.14
  4. Step 4: Simplify right side
    1,820,971.92x = 2,525,949,098,361.61
  5. Step 5: Solve for x
    x = 2,525,949,098,361.61/1,820,971.92
  6. Step 6: Final answer
    x = 1,387,143.35

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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.