Home / 329,021.20-493,531.80-326,947.60

Finding the Fourth Proportional to 329,021.20, 493,531.80 and 326,947.60

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Solution

The fourth proportional to 329,021.20, 493,531.80 and 326,947.60 is: 490,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,021.20 : 493,531.80 = 326,947.60 : x
  2. Step 2: Convert to fraction form
    329,021.20/493,531.80 = 326,947.60/x
  3. Step 3: Cross multiply
    329,021.20x = 493,531.80 × 326,947.60
  4. Step 4: Simplify right side
    329,021.20x = 161,359,037,533.68
  5. Step 5: Solve for x
    x = 161,359,037,533.68/329,021.20
  6. Step 6: Final answer
    x = 490,421.40

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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.