Home / 870,148.26-1,305,169.74-517,407.03

Finding the Fourth Proportional to 870,148.26, 1,305,169.74 and 517,407.03

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Solution

The fourth proportional to 870,148.26, 1,305,169.74 and 517,407.03 is: 776,079.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,148.26 : 1,305,169.74 = 517,407.03 : x
  2. Step 2: Convert to fraction form
    870,148.26/1,305,169.74 = 517,407.03/x
  3. Step 3: Cross multiply
    870,148.26x = 1,305,169.74 × 517,407.03
  4. Step 4: Simplify right side
    870,148.26x = 675,303,998,819.27
  5. Step 5: Solve for x
    x = 675,303,998,819.27/870,148.26
  6. Step 6: Final answer
    x = 776,079.24

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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.