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Finding the Fourth Proportional to 423,679.70, 584,433.96 and 253,815.44

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Solution

The fourth proportional to 423,679.70, 584,433.96 and 253,815.44 is: 350,119.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,679.70 : 584,433.96 = 253,815.44 : x
  2. Step 2: Convert to fraction form
    423,679.70/584,433.96 = 253,815.44/x
  3. Step 3: Cross multiply
    423,679.70x = 584,433.96 × 253,815.44
  4. Step 4: Simplify right side
    423,679.70x = 148,338,362,708.34
  5. Step 5: Solve for x
    x = 148,338,362,708.34/423,679.70
  6. Step 6: Final answer
    x = 350,119.12

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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.