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Finding the Fourth Proportional to 1,087.01, 1,630.25 and 501.64

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Solution

The fourth proportional to 1,087.01, 1,630.25 and 501.64 is: 752.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087.01 : 1,630.25 = 501.64 : x
  2. Step 2: Convert to fraction form
    1,087.01/1,630.25 = 501.64/x
  3. Step 3: Cross multiply
    1,087.01x = 1,630.25 × 501.64
  4. Step 4: Simplify right side
    1,087.01x = 817,798.61
  5. Step 5: Solve for x
    x = 817,798.61/1,087.01
  6. Step 6: Final answer
    x = 752.34

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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.