Home / 1,289,628.10-1,934,439.72-342,999.82

Finding the Fourth Proportional to 1,289,628.10, 1,934,439.72 and 342,999.82

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Solution

The fourth proportional to 1,289,628.10, 1,934,439.72 and 342,999.82 is: 514,499.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,628.10 : 1,934,439.72 = 342,999.82 : x
  2. Step 2: Convert to fraction form
    1,289,628.10/1,934,439.72 = 342,999.82/x
  3. Step 3: Cross multiply
    1,289,628.10x = 1,934,439.72 × 342,999.82
  4. Step 4: Simplify right side
    1,289,628.10x = 663,512,475,760.85
  5. Step 5: Solve for x
    x = 663,512,475,760.85/1,289,628.10
  6. Step 6: Final answer
    x = 514,499.08

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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.