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Finding the Fourth Proportional to 493,990.20, 740,985.30 and 488,741.40

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Solution

The fourth proportional to 493,990.20, 740,985.30 and 488,741.40 is: 733,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,990.20 : 740,985.30 = 488,741.40 : x
  2. Step 2: Convert to fraction form
    493,990.20/740,985.30 = 488,741.40/x
  3. Step 3: Cross multiply
    493,990.20x = 740,985.30 × 488,741.40
  4. Step 4: Simplify right side
    493,990.20x = 362,150,192,901.42
  5. Step 5: Solve for x
    x = 362,150,192,901.42/493,990.20
  6. Step 6: Final answer
    x = 733,112.10

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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.