Home / 993,085.70-1,489,628.55-638,500.10

Finding the Fourth Proportional to 993,085.70, 1,489,628.55 and 638,500.10

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Solution

The fourth proportional to 993,085.70, 1,489,628.55 and 638,500.10 is: 957,750.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,085.70 : 1,489,628.55 = 638,500.10 : x
  2. Step 2: Convert to fraction form
    993,085.70/1,489,628.55 = 638,500.10/x
  3. Step 3: Cross multiply
    993,085.70x = 1,489,628.55 × 638,500.10
  4. Step 4: Simplify right side
    993,085.70x = 951,127,978,137.86
  5. Step 5: Solve for x
    x = 951,127,978,137.86/993,085.70
  6. Step 6: Final answer
    x = 957,750.15

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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.