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Finding the Fourth Proportional to 1,050.49, 1,574.52 and 617.95

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Solution

The fourth proportional to 1,050.49, 1,574.52 and 617.95 is: 926.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.49 : 1,574.52 = 617.95 : x
  2. Step 2: Convert to fraction form
    1,050.49/1,574.52 = 617.95/x
  3. Step 3: Cross multiply
    1,050.49x = 1,574.52 × 617.95
  4. Step 4: Simplify right side
    1,050.49x = 972,974.63
  5. Step 5: Solve for x
    x = 972,974.63/1,050.49
  6. Step 6: Final answer
    x = 926.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.