Home / 345,028.80-517,543.20-329,973.60

Finding the Fourth Proportional to 345,028.80, 517,543.20 and 329,973.60

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Solution

The fourth proportional to 345,028.80, 517,543.20 and 329,973.60 is: 494,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,028.80 : 517,543.20 = 329,973.60 : x
  2. Step 2: Convert to fraction form
    345,028.80/517,543.20 = 329,973.60/x
  3. Step 3: Cross multiply
    345,028.80x = 517,543.20 × 329,973.60
  4. Step 4: Simplify right side
    345,028.80x = 170,775,592,859.52
  5. Step 5: Solve for x
    x = 170,775,592,859.52/345,028.80
  6. Step 6: Final answer
    x = 494,960.40

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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.