Home / 1,325,977.20-1,989,111.60-484,711.20

Finding the Fourth Proportional to 1,325,977.20, 1,989,111.60 and 484,711.20

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Solution

The fourth proportional to 1,325,977.20, 1,989,111.60 and 484,711.20 is: 727,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,977.20 : 1,989,111.60 = 484,711.20 : x
  2. Step 2: Convert to fraction form
    1,325,977.20/1,989,111.60 = 484,711.20/x
  3. Step 3: Cross multiply
    1,325,977.20x = 1,989,111.60 × 484,711.20
  4. Step 4: Simplify right side
    1,325,977.20x = 964,144,670,569.92
  5. Step 5: Solve for x
    x = 964,144,670,569.92/1,325,977.20
  6. Step 6: Final answer
    x = 727,120.10

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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.