Home / 326,579.04-489,977.64-126,905.94

Finding the Fourth Proportional to 326,579.04, 489,977.64 and 126,905.94

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Solution

The fourth proportional to 326,579.04, 489,977.64 and 126,905.94 is: 190,401.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,579.04 : 489,977.64 = 126,905.94 : x
  2. Step 2: Convert to fraction form
    326,579.04/489,977.64 = 126,905.94/x
  3. Step 3: Cross multiply
    326,579.04x = 489,977.64 × 126,905.94
  4. Step 4: Simplify right side
    326,579.04x = 62,181,072,983.18
  5. Step 5: Solve for x
    x = 62,181,072,983.18/326,579.04
  6. Step 6: Final answer
    x = 190,401.30

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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.