Home / 440,827.20-661,240.80-219,643.20

Finding the Fourth Proportional to 440,827.20, 661,240.80 and 219,643.20

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Solution

The fourth proportional to 440,827.20, 661,240.80 and 219,643.20 is: 329,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,827.20 : 661,240.80 = 219,643.20 : x
  2. Step 2: Convert to fraction form
    440,827.20/661,240.80 = 219,643.20/x
  3. Step 3: Cross multiply
    440,827.20x = 661,240.80 × 219,643.20
  4. Step 4: Simplify right side
    440,827.20x = 145,237,045,282.56
  5. Step 5: Solve for x
    x = 145,237,045,282.56/440,827.20
  6. Step 6: Final answer
    x = 329,464.80

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1.5x scale

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.