Home / 1,064.08-1,595.97-405.77

Finding the Fourth Proportional to 1,064.08, 1,595.97 and 405.77

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Solution

The fourth proportional to 1,064.08, 1,595.97 and 405.77 is: 608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064.08 : 1,595.97 = 405.77 : x
  2. Step 2: Convert to fraction form
    1,064.08/1,595.97 = 405.77/x
  3. Step 3: Cross multiply
    1,064.08x = 1,595.97 × 405.77
  4. Step 4: Simplify right side
    1,064.08x = 647,594.72
  5. Step 5: Solve for x
    x = 647,594.72/1,064.08
  6. Step 6: Final answer
    x = 608.60

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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.