Home / 703,212.11-1,054,153.81-638,774.89

Finding the Fourth Proportional to 703,212.11, 1,054,153.81 and 638,774.89

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Solution

The fourth proportional to 703,212.11, 1,054,153.81 and 638,774.89 is: 957,558.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,212.11 : 1,054,153.81 = 638,774.89 : x
  2. Step 2: Convert to fraction form
    703,212.11/1,054,153.81 = 638,774.89/x
  3. Step 3: Cross multiply
    703,212.11x = 1,054,153.81 × 638,774.89
  4. Step 4: Simplify right side
    703,212.11x = 673,366,984,025.83
  5. Step 5: Solve for x
    x = 673,366,984,025.83/703,212.11
  6. Step 6: Final answer
    x = 957,558.86

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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.