Home / 1,069,923.20-1,605,506.88-439,289.60

Finding the Fourth Proportional to 1,069,923.20, 1,605,506.88 and 439,289.60

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Solution

The fourth proportional to 1,069,923.20, 1,605,506.88 and 439,289.60 is: 659,189.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,923.20 : 1,605,506.88 = 439,289.60 : x
  2. Step 2: Convert to fraction form
    1,069,923.20/1,605,506.88 = 439,289.60/x
  3. Step 3: Cross multiply
    1,069,923.20x = 1,605,506.88 × 439,289.60
  4. Step 4: Simplify right side
    1,069,923.20x = 705,282,475,112.45
  5. Step 5: Solve for x
    x = 705,282,475,112.45/1,069,923.20
  6. Step 6: Final answer
    x = 659,189.81

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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.