Home / 611,214.30-916,821.45-443,252.70

Finding the Fourth Proportional to 611,214.30, 916,821.45 and 443,252.70

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Solution

The fourth proportional to 611,214.30, 916,821.45 and 443,252.70 is: 664,879.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,214.30 : 916,821.45 = 443,252.70 : x
  2. Step 2: Convert to fraction form
    611,214.30/916,821.45 = 443,252.70/x
  3. Step 3: Cross multiply
    611,214.30x = 916,821.45 × 443,252.70
  4. Step 4: Simplify right side
    611,214.30x = 406,383,583,130.42
  5. Step 5: Solve for x
    x = 406,383,583,130.42/611,214.30
  6. Step 6: Final answer
    x = 664,879.05

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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.