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Finding the Fourth Proportional to 1,037.47, 1,431.62 and 595.28

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Solution

The fourth proportional to 1,037.47, 1,431.62 and 595.28 is: 821.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.47 : 1,431.62 = 595.28 : x
  2. Step 2: Convert to fraction form
    1,037.47/1,431.62 = 595.28/x
  3. Step 3: Cross multiply
    1,037.47x = 1,431.62 × 595.28
  4. Step 4: Simplify right side
    1,037.47x = 852,206.85
  5. Step 5: Solve for x
    x = 852,206.85/1,037.47
  6. Step 6: Final answer
    x = 821.43

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Double scale
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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.