Home / 827,607.60-1,242,025.80-329,329.20

Finding the Fourth Proportional to 827,607.60, 1,242,025.80 and 329,329.20

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Solution

The fourth proportional to 827,607.60, 1,242,025.80 and 329,329.20 is: 494,238.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,607.60 : 1,242,025.80 = 329,329.20 : x
  2. Step 2: Convert to fraction form
    827,607.60/1,242,025.80 = 329,329.20/x
  3. Step 3: Cross multiply
    827,607.60x = 1,242,025.80 × 329,329.20
  4. Step 4: Simplify right side
    827,607.60x = 409,035,363,093.36
  5. Step 5: Solve for x
    x = 409,035,363,093.36/827,607.60
  6. Step 6: Final answer
    x = 494,238.29

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1.5x scale

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.