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Finding the Fourth Proportional to 973.58, 1,461.08 and 388.25

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Solution

The fourth proportional to 973.58, 1,461.08 and 388.25 is: 582.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.58 : 1,461.08 = 388.25 : x
  2. Step 2: Convert to fraction form
    973.58/1,461.08 = 388.25/x
  3. Step 3: Cross multiply
    973.58x = 1,461.08 × 388.25
  4. Step 4: Simplify right side
    973.58x = 567,256.03
  5. Step 5: Solve for x
    x = 567,256.03/973.58
  6. Step 6: Final answer
    x = 582.65

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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.