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Finding the Fourth Proportional to 973.90, 1,459.64 and 487.08

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Solution

The fourth proportional to 973.90, 1,459.64 and 487.08 is: 730.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.90 : 1,459.64 = 487.08 : x
  2. Step 2: Convert to fraction form
    973.90/1,459.64 = 487.08/x
  3. Step 3: Cross multiply
    973.90x = 1,459.64 × 487.08
  4. Step 4: Simplify right side
    973.90x = 710,961.45
  5. Step 5: Solve for x
    x = 710,961.45/973.90
  6. Step 6: Final answer
    x = 730.01

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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.