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Finding the Fourth Proportional to 497,108.20, 745,662.30 and 455,117.80

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Solution

The fourth proportional to 497,108.20, 745,662.30 and 455,117.80 is: 682,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,108.20 : 745,662.30 = 455,117.80 : x
  2. Step 2: Convert to fraction form
    497,108.20/745,662.30 = 455,117.80/x
  3. Step 3: Cross multiply
    497,108.20x = 745,662.30 × 455,117.80
  4. Step 4: Simplify right side
    497,108.20x = 339,364,185,518.94
  5. Step 5: Solve for x
    x = 339,364,185,518.94/497,108.20
  6. Step 6: Final answer
    x = 682,676.70

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Similar ratio
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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.