Home / 721,880.46-1,082,446.92-384,830.59

Finding the Fourth Proportional to 721,880.46, 1,082,446.92 and 384,830.59

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Solution

The fourth proportional to 721,880.46, 1,082,446.92 and 384,830.59 is: 577,046.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,880.46 : 1,082,446.92 = 384,830.59 : x
  2. Step 2: Convert to fraction form
    721,880.46/1,082,446.92 = 384,830.59/x
  3. Step 3: Cross multiply
    721,880.46x = 1,082,446.92 × 384,830.59
  4. Step 4: Simplify right side
    721,880.46x = 416,558,684,161.17
  5. Step 5: Solve for x
    x = 416,558,684,161.17/721,880.46
  6. Step 6: Final answer
    x = 577,046.63

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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.