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Finding the Fourth Proportional to 632.25, 870.48 and 603

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Solution

The fourth proportional to 632.25, 870.48 and 603 is: 830.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.25 : 870.48 = 603 : x
  2. Step 2: Convert to fraction form
    632.25/870.48 = 603/x
  3. Step 3: Cross multiply
    632.25x = 870.48 × 603
  4. Step 4: Simplify right side
    632.25x = 524,899.44
  5. Step 5: Solve for x
    x = 524,899.44/632.25
  6. Step 6: Final answer
    x = 830.21

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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.