Home / 703,213.12-1,054,155.30-638,775.90

Finding the Fourth Proportional to 703,213.12, 1,054,155.30 and 638,775.90

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Solution

The fourth proportional to 703,213.12, 1,054,155.30 and 638,775.90 is: 957,560.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,213.12 : 1,054,155.30 = 638,775.90 : x
  2. Step 2: Convert to fraction form
    703,213.12/1,054,155.30 = 638,775.90/x
  3. Step 3: Cross multiply
    703,213.12x = 1,054,155.30 × 638,775.90
  4. Step 4: Simplify right side
    703,213.12x = 673,369,000,497.27
  5. Step 5: Solve for x
    x = 673,369,000,497.27/703,213.12
  6. Step 6: Final answer
    x = 957,560.35

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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.