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Finding the Fourth Proportional to 510,342.87, 764,639.49 and 360,314.67

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Solution

The fourth proportional to 510,342.87, 764,639.49 and 360,314.67 is: 539,854.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,342.87 : 764,639.49 = 360,314.67 : x
  2. Step 2: Convert to fraction form
    510,342.87/764,639.49 = 360,314.67/x
  3. Step 3: Cross multiply
    510,342.87x = 764,639.49 × 360,314.67
  4. Step 4: Simplify right side
    510,342.87x = 275,510,825,508.32
  5. Step 5: Solve for x
    x = 275,510,825,508.32/510,342.87
  6. Step 6: Final answer
    x = 539,854.36

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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.