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Finding the Fourth Proportional to 612,964.56, 845,607.24 and 358,326.48

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Solution

The fourth proportional to 612,964.56, 845,607.24 and 358,326.48 is: 494,324.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,964.56 : 845,607.24 = 358,326.48 : x
  2. Step 2: Convert to fraction form
    612,964.56/845,607.24 = 358,326.48/x
  3. Step 3: Cross multiply
    612,964.56x = 845,607.24 × 358,326.48
  4. Step 4: Simplify right side
    612,964.56x = 303,003,465,771.72
  5. Step 5: Solve for x
    x = 303,003,465,771.72/612,964.56
  6. Step 6: Final answer
    x = 494,324.61

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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.