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Finding the Fourth Proportional to 493,800.30, 740,700.45 and 454,920.30

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Solution

The fourth proportional to 493,800.30, 740,700.45 and 454,920.30 is: 682,380.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,800.30 : 740,700.45 = 454,920.30 : x
  2. Step 2: Convert to fraction form
    493,800.30/740,700.45 = 454,920.30/x
  3. Step 3: Cross multiply
    493,800.30x = 740,700.45 × 454,920.30
  4. Step 4: Simplify right side
    493,800.30x = 336,959,670,924.14
  5. Step 5: Solve for x
    x = 336,959,670,924.14/493,800.30
  6. Step 6: Final answer
    x = 682,380.45

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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.