Home / 1,689,639.20-2,529,793.20-1,316,391.20

Finding the Fourth Proportional to 1,689,639.20, 2,529,793.20 and 1,316,391.20

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Solution

The fourth proportional to 1,689,639.20, 2,529,793.20 and 1,316,391.20 is: 1,970,951.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,639.20 : 2,529,793.20 = 1,316,391.20 : x
  2. Step 2: Convert to fraction form
    1,689,639.20/2,529,793.20 = 1,316,391.20/x
  3. Step 3: Cross multiply
    1,689,639.20x = 2,529,793.20 × 1,316,391.20
  4. Step 4: Simplify right side
    1,689,639.20x = 3,330,197,506,299.84
  5. Step 5: Solve for x
    x = 3,330,197,506,299.84/1,689,639.20
  6. Step 6: Final answer
    x = 1,970,951.85

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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.