Home / 724,216.32-1,086,320.16-393,891.84

Finding the Fourth Proportional to 724,216.32, 1,086,320.16 and 393,891.84

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Solution

The fourth proportional to 724,216.32, 1,086,320.16 and 393,891.84 is: 590,835.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,216.32 : 1,086,320.16 = 393,891.84 : x
  2. Step 2: Convert to fraction form
    724,216.32/1,086,320.16 = 393,891.84/x
  3. Step 3: Cross multiply
    724,216.32x = 1,086,320.16 × 393,891.84
  4. Step 4: Simplify right side
    724,216.32x = 427,892,646,651.49
  5. Step 5: Solve for x
    x = 427,892,646,651.49/724,216.32
  6. Step 6: Final answer
    x = 590,835.41

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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.