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Finding the Fourth Proportional to 670.28, 924.44 and 448.88

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Solution

The fourth proportional to 670.28, 924.44 and 448.88 is: 619.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.28 : 924.44 = 448.88 : x
  2. Step 2: Convert to fraction form
    670.28/924.44 = 448.88/x
  3. Step 3: Cross multiply
    670.28x = 924.44 × 448.88
  4. Step 4: Simplify right side
    670.28x = 414,955.76
  5. Step 5: Solve for x
    x = 414,955.76/670.28
  6. Step 6: Final answer
    x = 619.08

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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.