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Finding the Fourth Proportional to 1,055.37, 1,456.36 and 607.22

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Solution

The fourth proportional to 1,055.37, 1,456.36 and 607.22 is: 837.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055.37 : 1,456.36 = 607.22 : x
  2. Step 2: Convert to fraction form
    1,055.37/1,456.36 = 607.22/x
  3. Step 3: Cross multiply
    1,055.37x = 1,456.36 × 607.22
  4. Step 4: Simplify right side
    1,055.37x = 884,324.59
  5. Step 5: Solve for x
    x = 884,324.59/1,055.37
  6. Step 6: Final answer
    x = 837.93

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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.