Home / 1,370,485.76-2,055,728.48-423,864.64

Finding the Fourth Proportional to 1,370,485.76, 2,055,728.48 and 423,864.64

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Solution

The fourth proportional to 1,370,485.76, 2,055,728.48 and 423,864.64 is: 635,796.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,485.76 : 2,055,728.48 = 423,864.64 : x
  2. Step 2: Convert to fraction form
    1,370,485.76/2,055,728.48 = 423,864.64/x
  3. Step 3: Cross multiply
    1,370,485.76x = 2,055,728.48 × 423,864.64
  4. Step 4: Simplify right side
    1,370,485.76x = 871,350,612,112.95
  5. Step 5: Solve for x
    x = 871,350,612,112.95/1,370,485.76
  6. Step 6: Final answer
    x = 635,796.91

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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.