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Finding the Fourth Proportional to 630,645.42, 945,405.54 and 231,192.91

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Solution

The fourth proportional to 630,645.42, 945,405.54 and 231,192.91 is: 346,583.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,645.42 : 945,405.54 = 231,192.91 : x
  2. Step 2: Convert to fraction form
    630,645.42/945,405.54 = 231,192.91/x
  3. Step 3: Cross multiply
    630,645.42x = 945,405.54 × 231,192.91
  4. Step 4: Simplify right side
    630,645.42x = 218,571,059,104.48
  5. Step 5: Solve for x
    x = 218,571,059,104.48/630,645.42
  6. Step 6: Final answer
    x = 346,583.12

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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.