Home / 870,457.07-1,305,608.21-301,825.45

Finding the Fourth Proportional to 870,457.07, 1,305,608.21 and 301,825.45

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Solution

The fourth proportional to 870,457.07, 1,305,608.21 and 301,825.45 is: 452,711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,457.07 : 1,305,608.21 = 301,825.45 : x
  2. Step 2: Convert to fraction form
    870,457.07/1,305,608.21 = 301,825.45/x
  3. Step 3: Cross multiply
    870,457.07x = 1,305,608.21 × 301,825.45
  4. Step 4: Simplify right side
    870,457.07x = 394,065,785,506.95
  5. Step 5: Solve for x
    x = 394,065,785,506.95/870,457.07
  6. Step 6: Final answer
    x = 452,711.34

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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.