Home / 930,129.60-1,395,388.80-299,107.20

Finding the Fourth Proportional to 930,129.60, 1,395,388.80 and 299,107.20

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Solution

The fourth proportional to 930,129.60, 1,395,388.80 and 299,107.20 is: 448,723.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,129.60 : 1,395,388.80 = 299,107.20 : x
  2. Step 2: Convert to fraction form
    930,129.60/1,395,388.80 = 299,107.20/x
  3. Step 3: Cross multiply
    930,129.60x = 1,395,388.80 × 299,107.20
  4. Step 4: Simplify right side
    930,129.60x = 417,370,836,879.36
  5. Step 5: Solve for x
    x = 417,370,836,879.36/930,129.60
  6. Step 6: Final answer
    x = 448,723.31

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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.