Home / 1,206,357.20-1,809,478.20-407,560.40

Finding the Fourth Proportional to 1,206,357.20, 1,809,478.20 and 407,560.40

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Solution

The fourth proportional to 1,206,357.20, 1,809,478.20 and 407,560.40 is: 611,321.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,357.20 : 1,809,478.20 = 407,560.40 : x
  2. Step 2: Convert to fraction form
    1,206,357.20/1,809,478.20 = 407,560.40/x
  3. Step 3: Cross multiply
    1,206,357.20x = 1,809,478.20 × 407,560.40
  4. Step 4: Simplify right side
    1,206,357.20x = 737,471,658,983.28
  5. Step 5: Solve for x
    x = 737,471,658,983.28/1,206,357.20
  6. Step 6: Final answer
    x = 611,321.14

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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.