Home / 1,604.21-2,406.40-508.66

Finding the Fourth Proportional to 1,604.21, 2,406.40 and 508.66

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Solution

The fourth proportional to 1,604.21, 2,406.40 and 508.66 is: 763.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,604.21 : 2,406.40 = 508.66 : x
  2. Step 2: Convert to fraction form
    1,604.21/2,406.40 = 508.66/x
  3. Step 3: Cross multiply
    1,604.21x = 2,406.40 × 508.66
  4. Step 4: Simplify right side
    1,604.21x = 1,224,047.35
  5. Step 5: Solve for x
    x = 1,224,047.35/1,604.21
  6. Step 6: Final answer
    x = 763.02

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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.