Home / 1,208,212.20-1,812,260.70-409,415.40

Finding the Fourth Proportional to 1,208,212.20, 1,812,260.70 and 409,415.40

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Solution

The fourth proportional to 1,208,212.20, 1,812,260.70 and 409,415.40 is: 614,103.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,212.20 : 1,812,260.70 = 409,415.40 : x
  2. Step 2: Convert to fraction form
    1,208,212.20/1,812,260.70 = 409,415.40/x
  3. Step 3: Cross multiply
    1,208,212.20x = 1,812,260.70 × 409,415.40
  4. Step 4: Simplify right side
    1,208,212.20x = 741,967,439,394.78
  5. Step 5: Solve for x
    x = 741,967,439,394.78/1,208,212.20
  6. Step 6: Final answer
    x = 614,103.58

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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.