Home / 1,615,286.80-2,422,930.20-942,128.20

Finding the Fourth Proportional to 1,615,286.80, 2,422,930.20 and 942,128.20

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Solution

The fourth proportional to 1,615,286.80, 2,422,930.20 and 942,128.20 is: 1,413,192.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,286.80 : 2,422,930.20 = 942,128.20 : x
  2. Step 2: Convert to fraction form
    1,615,286.80/2,422,930.20 = 942,128.20/x
  3. Step 3: Cross multiply
    1,615,286.80x = 2,422,930.20 × 942,128.20
  4. Step 4: Simplify right side
    1,615,286.80x = 2,282,710,868,051.64
  5. Step 5: Solve for x
    x = 2,282,710,868,051.64/1,615,286.80
  6. Step 6: Final answer
    x = 1,413,192.30

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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.