Home / 698,705.38-1,048,057.53-225,390.72

Finding the Fourth Proportional to 698,705.38, 1,048,057.53 and 225,390.72

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Solution

The fourth proportional to 698,705.38, 1,048,057.53 and 225,390.72 is: 338,085.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,705.38 : 1,048,057.53 = 225,390.72 : x
  2. Step 2: Convert to fraction form
    698,705.38/1,048,057.53 = 225,390.72/x
  3. Step 3: Cross multiply
    698,705.38x = 1,048,057.53 × 225,390.72
  4. Step 4: Simplify right side
    698,705.38x = 236,222,441,288.12
  5. Step 5: Solve for x
    x = 236,222,441,288.12/698,705.38
  6. Step 6: Final answer
    x = 338,085.91

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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.