Home / 326,453.28-489,623.41-89,739.69

Finding the Fourth Proportional to 326,453.28, 489,623.41 and 89,739.69

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Solution

The fourth proportional to 326,453.28, 489,623.41 and 89,739.69 is: 134,594.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,453.28 : 489,623.41 = 89,739.69 : x
  2. Step 2: Convert to fraction form
    326,453.28/489,623.41 = 89,739.69/x
  3. Step 3: Cross multiply
    326,453.28x = 489,623.41 × 89,739.69
  4. Step 4: Simplify right side
    326,453.28x = 43,938,653,030.14
  5. Step 5: Solve for x
    x = 43,938,653,030.14/326,453.28
  6. Step 6: Final answer
    x = 134,594.00

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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.