Home / 1,206,362.20-1,809,485.70-407,565.40

Finding the Fourth Proportional to 1,206,362.20, 1,809,485.70 and 407,565.40

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Solution

The fourth proportional to 1,206,362.20, 1,809,485.70 and 407,565.40 is: 611,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,362.20 : 1,809,485.70 = 407,565.40 : x
  2. Step 2: Convert to fraction form
    1,206,362.20/1,809,485.70 = 407,565.40/x
  3. Step 3: Cross multiply
    1,206,362.20x = 1,809,485.70 × 407,565.40
  4. Step 4: Simplify right side
    1,206,362.20x = 737,483,763,114.78
  5. Step 5: Solve for x
    x = 737,483,763,114.78/1,206,362.20
  6. Step 6: Final answer
    x = 611,328.64

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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.