Home / 870,078.55-1,200,716.59-488,113.53

Finding the Fourth Proportional to 870,078.55, 1,200,716.59 and 488,113.53

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Solution

The fourth proportional to 870,078.55, 1,200,716.59 and 488,113.53 is: 673,601.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,078.55 : 1,200,716.59 = 488,113.53 : x
  2. Step 2: Convert to fraction form
    870,078.55/1,200,716.59 = 488,113.53/x
  3. Step 3: Cross multiply
    870,078.55x = 1,200,716.59 × 488,113.53
  4. Step 4: Simplify right side
    870,078.55x = 586,086,013,884.61
  5. Step 5: Solve for x
    x = 586,086,013,884.61/870,078.55
  6. Step 6: Final answer
    x = 673,601.27

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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.