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Finding the Fourth Proportional to 944.06, 1,302.45 and 612.56

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Solution

The fourth proportional to 944.06, 1,302.45 and 612.56 is: 845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.06 : 1,302.45 = 612.56 : x
  2. Step 2: Convert to fraction form
    944.06/1,302.45 = 612.56/x
  3. Step 3: Cross multiply
    944.06x = 1,302.45 × 612.56
  4. Step 4: Simplify right side
    944.06x = 797,828.77
  5. Step 5: Solve for x
    x = 797,828.77/944.06
  6. Step 6: Final answer
    x = 845.10

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1.5x scale

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.