Home / 828,000.70-1,242,001.05-822,751.90

Finding the Fourth Proportional to 828,000.70, 1,242,001.05 and 822,751.90

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Solution

The fourth proportional to 828,000.70, 1,242,001.05 and 822,751.90 is: 1,234,127.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,000.70 : 1,242,001.05 = 822,751.90 : x
  2. Step 2: Convert to fraction form
    828,000.70/1,242,001.05 = 822,751.90/x
  3. Step 3: Cross multiply
    828,000.70x = 1,242,001.05 × 822,751.90
  4. Step 4: Simplify right side
    828,000.70x = 1,021,858,723,689.50
  5. Step 5: Solve for x
    x = 1,021,858,723,689.50/828,000.70
  6. Step 6: Final answer
    x = 1,234,127.85

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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.