Home / 784,211.31-1,082,166.75-435,333.78

Finding the Fourth Proportional to 784,211.31, 1,082,166.75 and 435,333.78

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Solution

The fourth proportional to 784,211.31, 1,082,166.75 and 435,333.78 is: 600,735.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,211.31 : 1,082,166.75 = 435,333.78 : x
  2. Step 2: Convert to fraction form
    784,211.31/1,082,166.75 = 435,333.78/x
  3. Step 3: Cross multiply
    784,211.31x = 1,082,166.75 × 435,333.78
  4. Step 4: Simplify right side
    784,211.31x = 471,103,741,867.82
  5. Step 5: Solve for x
    x = 471,103,741,867.82/784,211.31
  6. Step 6: Final answer
    x = 600,735.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.