Home / 929,280.87-1,393,921.37-330,265.67

Finding the Fourth Proportional to 929,280.87, 1,393,921.37 and 330,265.67

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Solution

The fourth proportional to 929,280.87, 1,393,921.37 and 330,265.67 is: 495,398.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,280.87 : 1,393,921.37 = 330,265.67 : x
  2. Step 2: Convert to fraction form
    929,280.87/1,393,921.37 = 330,265.67/x
  3. Step 3: Cross multiply
    929,280.87x = 1,393,921.37 × 330,265.67
  4. Step 4: Simplify right side
    929,280.87x = 460,364,369,046.43
  5. Step 5: Solve for x
    x = 460,364,369,046.43/929,280.87
  6. Step 6: Final answer
    x = 495,398.52

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Double scale
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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.