Home / 1,152,212.36-1,728,401.60-442,240.40

Finding the Fourth Proportional to 1,152,212.36, 1,728,401.60 and 442,240.40

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Solution

The fourth proportional to 1,152,212.36, 1,728,401.60 and 442,240.40 is: 663,392.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,212.36 : 1,728,401.60 = 442,240.40 : x
  2. Step 2: Convert to fraction form
    1,152,212.36/1,728,401.60 = 442,240.40/x
  3. Step 3: Cross multiply
    1,152,212.36x = 1,728,401.60 × 442,240.40
  4. Step 4: Simplify right side
    1,152,212.36x = 764,369,014,944.64
  5. Step 5: Solve for x
    x = 764,369,014,944.64/1,152,212.36
  6. Step 6: Final answer
    x = 663,392.48

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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.