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Finding the Fourth Proportional to 889,352.80, 1,334,223.60 and 440,288.80

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Solution

The fourth proportional to 889,352.80, 1,334,223.60 and 440,288.80 is: 660,529.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,352.80 : 1,334,223.60 = 440,288.80 : x
  2. Step 2: Convert to fraction form
    889,352.80/1,334,223.60 = 440,288.80/x
  3. Step 3: Cross multiply
    889,352.80x = 1,334,223.60 × 440,288.80
  4. Step 4: Simplify right side
    889,352.80x = 587,443,707,775.68
  5. Step 5: Solve for x
    x = 587,443,707,775.68/889,352.80
  6. Step 6: Final answer
    x = 660,529.44

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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.