Home / 485,409.66-669,868.45-270,563.35

Finding the Fourth Proportional to 485,409.66, 669,868.45 and 270,563.35

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Solution

The fourth proportional to 485,409.66, 669,868.45 and 270,563.35 is: 373,379.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,409.66 : 669,868.45 = 270,563.35 : x
  2. Step 2: Convert to fraction form
    485,409.66/669,868.45 = 270,563.35/x
  3. Step 3: Cross multiply
    485,409.66x = 669,868.45 × 270,563.35
  4. Step 4: Simplify right side
    485,409.66x = 181,241,850,538.49
  5. Step 5: Solve for x
    x = 181,241,850,538.49/485,409.66
  6. Step 6: Final answer
    x = 373,379.16

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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.