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Finding the Fourth Proportional to 610,763.86, 916,145.79 and 330,827.86

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Solution

The fourth proportional to 610,763.86, 916,145.79 and 330,827.86 is: 496,241.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,763.86 : 916,145.79 = 330,827.86 : x
  2. Step 2: Convert to fraction form
    610,763.86/916,145.79 = 330,827.86/x
  3. Step 3: Cross multiply
    610,763.86x = 916,145.79 × 330,827.86
  4. Step 4: Simplify right side
    610,763.86x = 303,086,551,153.71
  5. Step 5: Solve for x
    x = 303,086,551,153.71/610,763.86
  6. Step 6: Final answer
    x = 496,241.79

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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.