Home / 870,255.97-1,200,973.95-488,311.00

Finding the Fourth Proportional to 870,255.97, 1,200,973.95 and 488,311.00

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Solution

The fourth proportional to 870,255.97, 1,200,973.95 and 488,311.00 is: 673,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,255.97 : 1,200,973.95 = 488,311.00 : x
  2. Step 2: Convert to fraction form
    870,255.97/1,200,973.95 = 488,311.00/x
  3. Step 3: Cross multiply
    870,255.97x = 1,200,973.95 × 488,311.00
  4. Step 4: Simplify right side
    870,255.97x = 586,448,786,122.64
  5. Step 5: Solve for x
    x = 586,448,786,122.64/870,255.97
  6. Step 6: Final answer
    x = 673,880.80

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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.