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Finding the Fourth Proportional to 493,714.30, 740,571.45 and 455,223.10

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Solution

The fourth proportional to 493,714.30, 740,571.45 and 455,223.10 is: 682,834.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,714.30 : 740,571.45 = 455,223.10 : x
  2. Step 2: Convert to fraction form
    493,714.30/740,571.45 = 455,223.10/x
  3. Step 3: Cross multiply
    493,714.30x = 740,571.45 × 455,223.10
  4. Step 4: Simplify right side
    493,714.30x = 337,125,231,240.50
  5. Step 5: Solve for x
    x = 337,125,231,240.50/493,714.30
  6. Step 6: Final answer
    x = 682,834.65

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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.