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Finding the Fourth Proportional to 520,059.30, 778,757.13 and 359,913.54

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Solution

The fourth proportional to 520,059.30, 778,757.13 and 359,913.54 is: 538,948.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,059.30 : 778,757.13 = 359,913.54 : x
  2. Step 2: Convert to fraction form
    520,059.30/778,757.13 = 359,913.54/x
  3. Step 3: Cross multiply
    520,059.30x = 778,757.13 × 359,913.54
  4. Step 4: Simplify right side
    520,059.30x = 280,285,235,458.54
  5. Step 5: Solve for x
    x = 280,285,235,458.54/520,059.30
  6. Step 6: Final answer
    x = 538,948.61

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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.