Home / 872,705.19-1,308,641.72-304,016.34

Finding the Fourth Proportional to 872,705.19, 1,308,641.72 and 304,016.34

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Solution

The fourth proportional to 872,705.19, 1,308,641.72 and 304,016.34 is: 455,879.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,705.19 : 1,308,641.72 = 304,016.34 : x
  2. Step 2: Convert to fraction form
    872,705.19/1,308,641.72 = 304,016.34/x
  3. Step 3: Cross multiply
    872,705.19x = 1,308,641.72 × 304,016.34
  4. Step 4: Simplify right side
    872,705.19x = 397,848,470,613.09
  5. Step 5: Solve for x
    x = 397,848,470,613.09/872,705.19
  6. Step 6: Final answer
    x = 455,879.57

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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.