Home / 870,080.68-1,200,719.53-488,115.66

Finding the Fourth Proportional to 870,080.68, 1,200,719.53 and 488,115.66

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Solution

The fourth proportional to 870,080.68, 1,200,719.53 and 488,115.66 is: 673,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,080.68 : 1,200,719.53 = 488,115.66 : x
  2. Step 2: Convert to fraction form
    870,080.68/1,200,719.53 = 488,115.66/x
  3. Step 3: Cross multiply
    870,080.68x = 1,200,719.53 × 488,115.66
  4. Step 4: Simplify right side
    870,080.68x = 586,089,997,416.66
  5. Step 5: Solve for x
    x = 586,089,997,416.66/870,080.68
  6. Step 6: Final answer
    x = 673,604.20

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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.