Home / 812,849.12-1,219,076.76-339,277.76

Finding the Fourth Proportional to 812,849.12, 1,219,076.76 and 339,277.76

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Solution

The fourth proportional to 812,849.12, 1,219,076.76 and 339,277.76 is: 508,834.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,849.12 : 1,219,076.76 = 339,277.76 : x
  2. Step 2: Convert to fraction form
    812,849.12/1,219,076.76 = 339,277.76/x
  3. Step 3: Cross multiply
    812,849.12x = 1,219,076.76 × 339,277.76
  4. Step 4: Simplify right side
    812,849.12x = 413,605,632,400.86
  5. Step 5: Solve for x
    x = 413,605,632,400.86/812,849.12
  6. Step 6: Final answer
    x = 508,834.45

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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.