Home / 870,390.36-1,305,120.69-301,625.55

Finding the Fourth Proportional to 870,390.36, 1,305,120.69 and 301,625.55

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Solution

The fourth proportional to 870,390.36, 1,305,120.69 and 301,625.55 is: 452,277.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,390.36 : 1,305,120.69 = 301,625.55 : x
  2. Step 2: Convert to fraction form
    870,390.36/1,305,120.69 = 301,625.55/x
  3. Step 3: Cross multiply
    870,390.36x = 1,305,120.69 × 301,625.55
  4. Step 4: Simplify right side
    870,390.36x = 393,657,745,937.63
  5. Step 5: Solve for x
    x = 393,657,745,937.63/870,390.36
  6. Step 6: Final answer
    x = 452,277.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.