Home / 755,329.80-1,130,661.90-438,846.60

Finding the Fourth Proportional to 755,329.80, 1,130,661.90 and 438,846.60

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Solution

The fourth proportional to 755,329.80, 1,130,661.90 and 438,846.60 is: 656,914.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,329.80 : 1,130,661.90 = 438,846.60 : x
  2. Step 2: Convert to fraction form
    755,329.80/1,130,661.90 = 438,846.60/x
  3. Step 3: Cross multiply
    755,329.80x = 1,130,661.90 × 438,846.60
  4. Step 4: Simplify right side
    755,329.80x = 496,187,130,564.54
  5. Step 5: Solve for x
    x = 496,187,130,564.54/755,329.80
  6. Step 6: Final answer
    x = 656,914.54

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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.