Home / 870,291.30-1,305,141.32-301,539.66

Finding the Fourth Proportional to 870,291.30, 1,305,141.32 and 301,539.66

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Solution

The fourth proportional to 870,291.30, 1,305,141.32 and 301,539.66 is: 452,207.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,291.30 : 1,305,141.32 = 301,539.66 : x
  2. Step 2: Convert to fraction form
    870,291.30/1,305,141.32 = 301,539.66/x
  3. Step 3: Cross multiply
    870,291.30x = 1,305,141.32 × 301,539.66
  4. Step 4: Simplify right side
    870,291.30x = 393,551,868,377.05
  5. Step 5: Solve for x
    x = 393,551,868,377.05/870,291.30
  6. Step 6: Final answer
    x = 452,207.06

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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.