Home / 1,427,395.40-2,140,981.82-528,414.28

Finding the Fourth Proportional to 1,427,395.40, 2,140,981.82 and 528,414.28

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Solution

The fourth proportional to 1,427,395.40, 2,140,981.82 and 528,414.28 is: 792,580.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,395.40 : 2,140,981.82 = 528,414.28 : x
  2. Step 2: Convert to fraction form
    1,427,395.40/2,140,981.82 = 528,414.28/x
  3. Step 3: Cross multiply
    1,427,395.40x = 2,140,981.82 × 528,414.28
  4. Step 4: Simplify right side
    1,427,395.40x = 1,131,325,366,908.39
  5. Step 5: Solve for x
    x = 1,131,325,366,908.39/1,427,395.40
  6. Step 6: Final answer
    x = 792,580.22

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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.