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Finding the Fourth Proportional to 1,046, 1,443.51 and 580.28

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Solution

The fourth proportional to 1,046, 1,443.51 and 580.28 is: 800.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046 : 1,443.51 = 580.28 : x
  2. Step 2: Convert to fraction form
    1,046/1,443.51 = 580.28/x
  3. Step 3: Cross multiply
    1,046x = 1,443.51 × 580.28
  4. Step 4: Simplify right side
    1,046x = 837,639.98
  5. Step 5: Solve for x
    x = 837,639.98/1,046
  6. Step 6: Final answer
    x = 800.80

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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.