Home / 872,166.80-1,307,278.20-339,510.80

Finding the Fourth Proportional to 872,166.80, 1,307,278.20 and 339,510.80

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Solution

The fourth proportional to 872,166.80, 1,307,278.20 and 339,510.80 is: 508,887.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,166.80 : 1,307,278.20 = 339,510.80 : x
  2. Step 2: Convert to fraction form
    872,166.80/1,307,278.20 = 339,510.80/x
  3. Step 3: Cross multiply
    872,166.80x = 1,307,278.20 × 339,510.80
  4. Step 4: Simplify right side
    872,166.80x = 443,835,067,504.56
  5. Step 5: Solve for x
    x = 443,835,067,504.56/872,166.80
  6. Step 6: Final answer
    x = 508,887.83

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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.