Home / 740,985.53-1,022,559.83-401,453.78

Finding the Fourth Proportional to 740,985.53, 1,022,559.83 and 401,453.78

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Solution

The fourth proportional to 740,985.53, 1,022,559.83 and 401,453.78 is: 554,006.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,985.53 : 1,022,559.83 = 401,453.78 : x
  2. Step 2: Convert to fraction form
    740,985.53/1,022,559.83 = 401,453.78/x
  3. Step 3: Cross multiply
    740,985.53x = 1,022,559.83 × 401,453.78
  4. Step 4: Simplify right side
    740,985.53x = 410,510,509,029.66
  5. Step 5: Solve for x
    x = 410,510,509,029.66/740,985.53
  6. Step 6: Final answer
    x = 554,006.11

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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.