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Finding the Fourth Proportional to 747.14, 1,030.66 and 607.41

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Solution

The fourth proportional to 747.14, 1,030.66 and 607.41 is: 837.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    747.14 : 1,030.66 = 607.41 : x
  2. Step 2: Convert to fraction form
    747.14/1,030.66 = 607.41/x
  3. Step 3: Cross multiply
    747.14x = 1,030.66 × 607.41
  4. Step 4: Simplify right side
    747.14x = 626,033.19
  5. Step 5: Solve for x
    x = 626,033.19/747.14
  6. Step 6: Final answer
    x = 837.91

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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.