Home / 724,343.80-1,085,219.70-349,540.60

Finding the Fourth Proportional to 724,343.80, 1,085,219.70 and 349,540.60

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Solution

The fourth proportional to 724,343.80, 1,085,219.70 and 349,540.60 is: 523,685.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,343.80 : 1,085,219.70 = 349,540.60 : x
  2. Step 2: Convert to fraction form
    724,343.80/1,085,219.70 = 349,540.60/x
  3. Step 3: Cross multiply
    724,343.80x = 1,085,219.70 × 349,540.60
  4. Step 4: Simplify right side
    724,343.80x = 379,328,345,069.82
  5. Step 5: Solve for x
    x = 379,328,345,069.82/724,343.80
  6. Step 6: Final answer
    x = 523,685.50

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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.