Home / 1,663,399.20-2,495,098.80-1,208,721.90

Finding the Fourth Proportional to 1,663,399.20, 2,495,098.80 and 1,208,721.90

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Solution

The fourth proportional to 1,663,399.20, 2,495,098.80 and 1,208,721.90 is: 1,813,082.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,399.20 : 2,495,098.80 = 1,208,721.90 : x
  2. Step 2: Convert to fraction form
    1,663,399.20/2,495,098.80 = 1,208,721.90/x
  3. Step 3: Cross multiply
    1,663,399.20x = 2,495,098.80 × 1,208,721.90
  4. Step 4: Simplify right side
    1,663,399.20x = 3,015,880,562,223.72
  5. Step 5: Solve for x
    x = 3,015,880,562,223.72/1,663,399.20
  6. Step 6: Final answer
    x = 1,813,082.85

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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.