Home / 889,286.40-1,333,022.40-439,315.20

Finding the Fourth Proportional to 889,286.40, 1,333,022.40 and 439,315.20

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Solution

The fourth proportional to 889,286.40, 1,333,022.40 and 439,315.20 is: 658,524.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,286.40 : 1,333,022.40 = 439,315.20 : x
  2. Step 2: Convert to fraction form
    889,286.40/1,333,022.40 = 439,315.20/x
  3. Step 3: Cross multiply
    889,286.40x = 1,333,022.40 × 439,315.20
  4. Step 4: Simplify right side
    889,286.40x = 585,617,002,260.48
  5. Step 5: Solve for x
    x = 585,617,002,260.48/889,286.40
  6. Step 6: Final answer
    x = 658,524.64

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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.