Home / 859,558.56-1,289,595.42-346,959.78

Finding the Fourth Proportional to 859,558.56, 1,289,595.42 and 346,959.78

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Solution

The fourth proportional to 859,558.56, 1,289,595.42 and 346,959.78 is: 520,543.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,558.56 : 1,289,595.42 = 346,959.78 : x
  2. Step 2: Convert to fraction form
    859,558.56/1,289,595.42 = 346,959.78/x
  3. Step 3: Cross multiply
    859,558.56x = 1,289,595.42 × 346,959.78
  4. Step 4: Simplify right side
    859,558.56x = 447,437,743,212.21
  5. Step 5: Solve for x
    x = 447,437,743,212.21/859,558.56
  6. Step 6: Final answer
    x = 520,543.64

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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.