Home / 738,995.76-1,019,814.44-399,464.01

Finding the Fourth Proportional to 738,995.76, 1,019,814.44 and 399,464.01

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Solution

The fourth proportional to 738,995.76, 1,019,814.44 and 399,464.01 is: 551,260.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,995.76 : 1,019,814.44 = 399,464.01 : x
  2. Step 2: Convert to fraction form
    738,995.76/1,019,814.44 = 399,464.01/x
  3. Step 3: Cross multiply
    738,995.76x = 1,019,814.44 × 399,464.01
  4. Step 4: Simplify right side
    738,995.76x = 407,379,163,660.98
  5. Step 5: Solve for x
    x = 407,379,163,660.98/738,995.76
  6. Step 6: Final answer
    x = 551,260.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.