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Finding the Fourth Proportional to 704.40, 970.08 and 548.88

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Solution

The fourth proportional to 704.40, 970.08 and 548.88 is: 755.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.40 : 970.08 = 548.88 : x
  2. Step 2: Convert to fraction form
    704.40/970.08 = 548.88/x
  3. Step 3: Cross multiply
    704.40x = 970.08 × 548.88
  4. Step 4: Simplify right side
    704.40x = 532,457.51
  5. Step 5: Solve for x
    x = 532,457.51/704.40
  6. Step 6: Final answer
    x = 755.90

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1.5x scale

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.