Home / 426,025.20-638,794.80-159,794.40

Finding the Fourth Proportional to 426,025.20, 638,794.80 and 159,794.40

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Solution

The fourth proportional to 426,025.20, 638,794.80 and 159,794.40 is: 239,600.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,025.20 : 638,794.80 = 159,794.40 : x
  2. Step 2: Convert to fraction form
    426,025.20/638,794.80 = 159,794.40/x
  3. Step 3: Cross multiply
    426,025.20x = 638,794.80 × 159,794.40
  4. Step 4: Simplify right side
    426,025.20x = 102,075,831,789.12
  5. Step 5: Solve for x
    x = 102,075,831,789.12/426,025.20
  6. Step 6: Final answer
    x = 239,600.46

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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.