Home / 740,983.53-1,022,557.07-401,451.78

Finding the Fourth Proportional to 740,983.53, 1,022,557.07 and 401,451.78

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Solution

The fourth proportional to 740,983.53, 1,022,557.07 and 401,451.78 is: 554,003.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,983.53 : 1,022,557.07 = 401,451.78 : x
  2. Step 2: Convert to fraction form
    740,983.53/1,022,557.07 = 401,451.78/x
  3. Step 3: Cross multiply
    740,983.53x = 1,022,557.07 × 401,451.78
  4. Step 4: Simplify right side
    740,983.53x = 410,507,355,903.09
  5. Step 5: Solve for x
    x = 410,507,355,903.09/740,983.53
  6. Step 6: Final answer
    x = 554,003.35

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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.