Home / 1,208,186.11-1,812,238.12-309,636.66

Finding the Fourth Proportional to 1,208,186.11, 1,812,238.12 and 309,636.66

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Solution

The fourth proportional to 1,208,186.11, 1,812,238.12 and 309,636.66 is: 464,444.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,186.11 : 1,812,238.12 = 309,636.66 : x
  2. Step 2: Convert to fraction form
    1,208,186.11/1,812,238.12 = 309,636.66/x
  3. Step 3: Cross multiply
    1,208,186.11x = 1,812,238.12 × 309,636.66
  4. Step 4: Simplify right side
    1,208,186.11x = 561,135,365,784.42
  5. Step 5: Solve for x
    x = 561,135,365,784.42/1,208,186.11
  6. Step 6: Final answer
    x = 464,444.48

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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.