Home / 870,080.83-1,200,719.74-488,115.81

Finding the Fourth Proportional to 870,080.83, 1,200,719.74 and 488,115.81

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Solution

The fourth proportional to 870,080.83, 1,200,719.74 and 488,115.81 is: 673,604.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,080.83 : 1,200,719.74 = 488,115.81 : x
  2. Step 2: Convert to fraction form
    870,080.83/1,200,719.74 = 488,115.81/x
  3. Step 3: Cross multiply
    870,080.83x = 1,200,719.74 × 488,115.81
  4. Step 4: Simplify right side
    870,080.83x = 586,090,288,473.09
  5. Step 5: Solve for x
    x = 586,090,288,473.09/870,080.83
  6. Step 6: Final answer
    x = 673,604.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.