Home / 859,473.77-1,288,409.30-290,456.94

Finding the Fourth Proportional to 859,473.77, 1,288,409.30 and 290,456.94

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Solution

The fourth proportional to 859,473.77, 1,288,409.30 and 290,456.94 is: 435,414.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,473.77 : 1,288,409.30 = 290,456.94 : x
  2. Step 2: Convert to fraction form
    859,473.77/1,288,409.30 = 290,456.94/x
  3. Step 3: Cross multiply
    859,473.77x = 1,288,409.30 × 290,456.94
  4. Step 4: Simplify right side
    859,473.77x = 374,227,421,293.26
  5. Step 5: Solve for x
    x = 374,227,421,293.26/859,473.77
  6. Step 6: Final answer
    x = 435,414.59

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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.