Home / 1,470.50-2,205.75-444.50

Finding the Fourth Proportional to 1,470.50, 2,205.75 and 444.50

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Solution

The fourth proportional to 1,470.50, 2,205.75 and 444.50 is: 666.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470.50 : 2,205.75 = 444.50 : x
  2. Step 2: Convert to fraction form
    1,470.50/2,205.75 = 444.50/x
  3. Step 3: Cross multiply
    1,470.50x = 2,205.75 × 444.50
  4. Step 4: Simplify right side
    1,470.50x = 980,455.88
  5. Step 5: Solve for x
    x = 980,455.88/1,470.50
  6. Step 6: Final answer
    x = 666.75

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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.