Home / 869,531.76-1,305,100.45-626,625.32

Finding the Fourth Proportional to 869,531.76, 1,305,100.45 and 626,625.32

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Solution

The fourth proportional to 869,531.76, 1,305,100.45 and 626,625.32 is: 940,516.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,531.76 : 1,305,100.45 = 626,625.32 : x
  2. Step 2: Convert to fraction form
    869,531.76/1,305,100.45 = 626,625.32/x
  3. Step 3: Cross multiply
    869,531.76x = 1,305,100.45 × 626,625.32
  4. Step 4: Simplify right side
    869,531.76x = 817,808,981,371.17
  5. Step 5: Solve for x
    x = 817,808,981,371.17/869,531.76
  6. Step 6: Final answer
    x = 940,516.52

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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.