Home / 740,966.70-1,111,968.45-320,544.30

Finding the Fourth Proportional to 740,966.70, 1,111,968.45 and 320,544.30

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Solution

The fourth proportional to 740,966.70, 1,111,968.45 and 320,544.30 is: 481,040.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,966.70 : 1,111,968.45 = 320,544.30 : x
  2. Step 2: Convert to fraction form
    740,966.70/1,111,968.45 = 320,544.30/x
  3. Step 3: Cross multiply
    740,966.70x = 1,111,968.45 × 320,544.30
  4. Step 4: Simplify right side
    740,966.70x = 356,435,148,427.34
  5. Step 5: Solve for x
    x = 356,435,148,427.34/740,966.70
  6. Step 6: Final answer
    x = 481,040.71

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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.