Home / 1,064.37-1,468.70-621.95

Finding the Fourth Proportional to 1,064.37, 1,468.70 and 621.95

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Solution

The fourth proportional to 1,064.37, 1,468.70 and 621.95 is: 858.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064.37 : 1,468.70 = 621.95 : x
  2. Step 2: Convert to fraction form
    1,064.37/1,468.70 = 621.95/x
  3. Step 3: Cross multiply
    1,064.37x = 1,468.70 × 621.95
  4. Step 4: Simplify right side
    1,064.37x = 913,457.97
  5. Step 5: Solve for x
    x = 913,457.97/1,064.37
  6. Step 6: Final answer
    x = 858.21

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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.