Home / 912,571.50-1,369,050.05-343,940.56

Finding the Fourth Proportional to 912,571.50, 1,369,050.05 and 343,940.56

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Solution

The fourth proportional to 912,571.50, 1,369,050.05 and 343,940.56 is: 515,983.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,571.50 : 1,369,050.05 = 343,940.56 : x
  2. Step 2: Convert to fraction form
    912,571.50/1,369,050.05 = 343,940.56/x
  3. Step 3: Cross multiply
    912,571.50x = 1,369,050.05 × 343,940.56
  4. Step 4: Simplify right side
    912,571.50x = 470,871,840,865.03
  5. Step 5: Solve for x
    x = 470,871,840,865.03/912,571.50
  6. Step 6: Final answer
    x = 515,983.50

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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.