Home / 870,079.55-1,200,717.97-488,114.53

Finding the Fourth Proportional to 870,079.55, 1,200,717.97 and 488,114.53

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Solution

The fourth proportional to 870,079.55, 1,200,717.97 and 488,114.53 is: 673,602.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,079.55 : 1,200,717.97 = 488,114.53 : x
  2. Step 2: Convert to fraction form
    870,079.55/1,200,717.97 = 488,114.53/x
  3. Step 3: Cross multiply
    870,079.55x = 1,200,717.97 × 488,114.53
  4. Step 4: Simplify right side
    870,079.55x = 586,087,887,589.10
  5. Step 5: Solve for x
    x = 586,087,887,589.10/870,079.55
  6. Step 6: Final answer
    x = 673,602.65

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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.