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Finding the Fourth Proportional to 606,044.20, 909,066.30 and 290,338.60

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Solution

The fourth proportional to 606,044.20, 909,066.30 and 290,338.60 is: 435,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,044.20 : 909,066.30 = 290,338.60 : x
  2. Step 2: Convert to fraction form
    606,044.20/909,066.30 = 290,338.60/x
  3. Step 3: Cross multiply
    606,044.20x = 909,066.30 × 290,338.60
  4. Step 4: Simplify right side
    606,044.20x = 263,937,036,849.18
  5. Step 5: Solve for x
    x = 263,937,036,849.18/606,044.20
  6. Step 6: Final answer
    x = 435,507.90

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Similar ratio
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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.