Home / 870,141.26-1,305,159.24-517,400.04

Finding the Fourth Proportional to 870,141.26, 1,305,159.24 and 517,400.04

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Solution

The fourth proportional to 870,141.26, 1,305,159.24 and 517,400.04 is: 776,068.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,141.26 : 1,305,159.24 = 517,400.04 : x
  2. Step 2: Convert to fraction form
    870,141.26/1,305,159.24 = 517,400.04/x
  3. Step 3: Cross multiply
    870,141.26x = 1,305,159.24 × 517,400.04
  4. Step 4: Simplify right side
    870,141.26x = 675,289,442,982.37
  5. Step 5: Solve for x
    x = 675,289,442,982.37/870,141.26
  6. Step 6: Final answer
    x = 776,068.75

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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.