Home / 987,027.60-1,481,232.60-426,464.40

Finding the Fourth Proportional to 987,027.60, 1,481,232.60 and 426,464.40

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Solution

The fourth proportional to 987,027.60, 1,481,232.60 and 426,464.40 is: 639,995.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,027.60 : 1,481,232.60 = 426,464.40 : x
  2. Step 2: Convert to fraction form
    987,027.60/1,481,232.60 = 426,464.40/x
  3. Step 3: Cross multiply
    987,027.60x = 1,481,232.60 × 426,464.40
  4. Step 4: Simplify right side
    987,027.60x = 631,692,972,019.44
  5. Step 5: Solve for x
    x = 631,692,972,019.44/987,027.60
  6. Step 6: Final answer
    x = 639,995.25

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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.