Home / 870,223.28-1,200,906.96-488,285.60

Finding the Fourth Proportional to 870,223.28, 1,200,906.96 and 488,285.60

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Solution

The fourth proportional to 870,223.28, 1,200,906.96 and 488,285.60 is: 673,833.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,223.28 : 1,200,906.96 = 488,285.60 : x
  2. Step 2: Convert to fraction form
    870,223.28/1,200,906.96 = 488,285.60/x
  3. Step 3: Cross multiply
    870,223.28x = 1,200,906.96 × 488,285.60
  4. Step 4: Simplify right side
    870,223.28x = 586,385,575,507.78
  5. Step 5: Solve for x
    x = 586,385,575,507.78/870,223.28
  6. Step 6: Final answer
    x = 673,833.47

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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.