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Finding the Fourth Proportional to 440,415.35, 660,150.76 and 288,555.08

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Solution

The fourth proportional to 440,415.35, 660,150.76 and 288,555.08 is: 432,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,415.35 : 660,150.76 = 288,555.08 : x
  2. Step 2: Convert to fraction form
    440,415.35/660,150.76 = 288,555.08/x
  3. Step 3: Cross multiply
    440,415.35x = 660,150.76 × 288,555.08
  4. Step 4: Simplify right side
    440,415.35x = 190,489,857,452.78
  5. Step 5: Solve for x
    x = 190,489,857,452.78/440,415.35
  6. Step 6: Final answer
    x = 432,523.20

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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.