Home / 485,409.16-669,867.75-270,562.85

Finding the Fourth Proportional to 485,409.16, 669,867.75 and 270,562.85

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Solution

The fourth proportional to 485,409.16, 669,867.75 and 270,562.85 is: 373,378.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,409.16 : 669,867.75 = 270,562.85 : x
  2. Step 2: Convert to fraction form
    485,409.16/669,867.75 = 270,562.85/x
  3. Step 3: Cross multiply
    485,409.16x = 669,867.75 × 270,562.85
  4. Step 4: Simplify right side
    485,409.16x = 181,241,328,577.70
  5. Step 5: Solve for x
    x = 181,241,328,577.70/485,409.16
  6. Step 6: Final answer
    x = 373,378.47

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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.