Home / 724,133.60-1,086,718.80-303,711.20

Finding the Fourth Proportional to 724,133.60, 1,086,718.80 and 303,711.20

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Solution

The fourth proportional to 724,133.60, 1,086,718.80 and 303,711.20 is: 455,784.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,133.60 : 1,086,718.80 = 303,711.20 : x
  2. Step 2: Convert to fraction form
    724,133.60/1,086,718.80 = 303,711.20/x
  3. Step 3: Cross multiply
    724,133.60x = 1,086,718.80 × 303,711.20
  4. Step 4: Simplify right side
    724,133.60x = 330,048,670,810.56
  5. Step 5: Solve for x
    x = 330,048,670,810.56/724,133.60
  6. Step 6: Final answer
    x = 455,784.22

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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.