Home / 822,000.45-1,134,324.96-449,456.57

Finding the Fourth Proportional to 822,000.45, 1,134,324.96 and 449,456.57

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Solution

The fourth proportional to 822,000.45, 1,134,324.96 and 449,456.57 is: 620,230.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,000.45 : 1,134,324.96 = 449,456.57 : x
  2. Step 2: Convert to fraction form
    822,000.45/1,134,324.96 = 449,456.57/x
  3. Step 3: Cross multiply
    822,000.45x = 1,134,324.96 × 449,456.57
  4. Step 4: Simplify right side
    822,000.45x = 509,829,808,402.10
  5. Step 5: Solve for x
    x = 509,829,808,402.10/822,000.45
  6. Step 6: Final answer
    x = 620,230.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.