Home / 2,790,792.28-4,180,085.14-1,978,715.13

Finding the Fourth Proportional to 2,790,792.28, 4,180,085.14 and 1,978,715.13

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Solution

The fourth proportional to 2,790,792.28, 4,180,085.14 and 1,978,715.13 is: 2,963,745.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790,792.28 : 4,180,085.14 = 1,978,715.13 : x
  2. Step 2: Convert to fraction form
    2,790,792.28/4,180,085.14 = 1,978,715.13/x
  3. Step 3: Cross multiply
    2,790,792.28x = 4,180,085.14 × 1,978,715.13
  4. Step 4: Simplify right side
    2,790,792.28x = 8,271,197,717,807.13
  5. Step 5: Solve for x
    x = 8,271,197,717,807.13/2,790,792.28
  6. Step 6: Final answer
    x = 2,963,745.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.