Home / 870,039.09-1,305,120.84-364,090.59

Finding the Fourth Proportional to 870,039.09, 1,305,120.84 and 364,090.59

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Solution

The fourth proportional to 870,039.09, 1,305,120.84 and 364,090.59 is: 546,161.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,039.09 : 1,305,120.84 = 364,090.59 : x
  2. Step 2: Convert to fraction form
    870,039.09/1,305,120.84 = 364,090.59/x
  3. Step 3: Cross multiply
    870,039.09x = 1,305,120.84 × 364,090.59
  4. Step 4: Simplify right side
    870,039.09x = 475,182,216,656.90
  5. Step 5: Solve for x
    x = 475,182,216,656.90/870,039.09
  6. Step 6: Final answer
    x = 546,161.92

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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.