Home / 993,158.70-1,489,738.05-638,573.10

Finding the Fourth Proportional to 993,158.70, 1,489,738.05 and 638,573.10

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Solution

The fourth proportional to 993,158.70, 1,489,738.05 and 638,573.10 is: 957,859.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,158.70 : 1,489,738.05 = 638,573.10 : x
  2. Step 2: Convert to fraction form
    993,158.70/1,489,738.05 = 638,573.10/x
  3. Step 3: Cross multiply
    993,158.70x = 1,489,738.05 × 638,573.10
  4. Step 4: Simplify right side
    993,158.70x = 951,306,644,776.46
  5. Step 5: Solve for x
    x = 951,306,644,776.46/993,158.70
  6. Step 6: Final answer
    x = 957,859.65

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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.