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Finding the Fourth Proportional to 612,658.44, 845,343.72 and 357,960.42

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Solution

The fourth proportional to 612,658.44, 845,343.72 and 357,960.42 is: 493,912.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,658.44 : 845,343.72 = 357,960.42 : x
  2. Step 2: Convert to fraction form
    612,658.44/845,343.72 = 357,960.42/x
  3. Step 3: Cross multiply
    612,658.44x = 845,343.72 × 357,960.42
  4. Step 4: Simplify right side
    612,658.44x = 302,599,593,055.56
  5. Step 5: Solve for x
    x = 302,599,593,055.56/612,658.44
  6. Step 6: Final answer
    x = 493,912.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.