Home / 847,911.92-1,272,043.10-279,327.56

Finding the Fourth Proportional to 847,911.92, 1,272,043.10 and 279,327.56

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Solution

The fourth proportional to 847,911.92, 1,272,043.10 and 279,327.56 is: 419,049.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,911.92 : 1,272,043.10 = 279,327.56 : x
  2. Step 2: Convert to fraction form
    847,911.92/1,272,043.10 = 279,327.56/x
  3. Step 3: Cross multiply
    847,911.92x = 1,272,043.10 × 279,327.56
  4. Step 4: Simplify right side
    847,911.92x = 355,316,689,675.94
  5. Step 5: Solve for x
    x = 355,316,689,675.94/847,911.92
  6. Step 6: Final answer
    x = 419,049.06

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1.5x scale

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.