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Finding the Fourth Proportional to 1,048.57, 1,573.00 and 355.32

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Solution

The fourth proportional to 1,048.57, 1,573.00 and 355.32 is: 533.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.57 : 1,573.00 = 355.32 : x
  2. Step 2: Convert to fraction form
    1,048.57/1,573.00 = 355.32/x
  3. Step 3: Cross multiply
    1,048.57x = 1,573.00 × 355.32
  4. Step 4: Simplify right side
    1,048.57x = 558,917.47
  5. Step 5: Solve for x
    x = 558,917.47/1,048.57
  6. Step 6: Final answer
    x = 533.03

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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.