Home / 1,470.08-2,205.12-359.49

Finding the Fourth Proportional to 1,470.08, 2,205.12 and 359.49

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Solution

The fourth proportional to 1,470.08, 2,205.12 and 359.49 is: 539.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470.08 : 2,205.12 = 359.49 : x
  2. Step 2: Convert to fraction form
    1,470.08/2,205.12 = 359.49/x
  3. Step 3: Cross multiply
    1,470.08x = 2,205.12 × 359.49
  4. Step 4: Simplify right side
    1,470.08x = 792,718.59
  5. Step 5: Solve for x
    x = 792,718.59/1,470.08
  6. Step 6: Final answer
    x = 539.24

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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.