Home / 1,064.06-1,468.46-621.90

Finding the Fourth Proportional to 1,064.06, 1,468.46 and 621.90

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Solution

The fourth proportional to 1,064.06, 1,468.46 and 621.90 is: 858.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064.06 : 1,468.46 = 621.90 : x
  2. Step 2: Convert to fraction form
    1,064.06/1,468.46 = 621.90/x
  3. Step 3: Cross multiply
    1,064.06x = 1,468.46 × 621.90
  4. Step 4: Simplify right side
    1,064.06x = 913,235.27
  5. Step 5: Solve for x
    x = 913,235.27/1,064.06
  6. Step 6: Final answer
    x = 858.26

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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.