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Finding the Fourth Proportional to 890,596, 1,229,100.24 and 488,265.76

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Solution

The fourth proportional to 890,596, 1,229,100.24 and 488,265.76 is: 673,849.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,596 : 1,229,100.24 = 488,265.76 : x
  2. Step 2: Convert to fraction form
    890,596/1,229,100.24 = 488,265.76/x
  3. Step 3: Cross multiply
    890,596x = 1,229,100.24 × 488,265.76
  4. Step 4: Simplify right side
    890,596x = 600,127,562,799.78
  5. Step 5: Solve for x
    x = 600,127,562,799.78/890,596
  6. Step 6: Final answer
    x = 673,849.38

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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.