Home / 1,245,015.72-1,868,106.78-613,585.08

Finding the Fourth Proportional to 1,245,015.72, 1,868,106.78 and 613,585.08

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Solution

The fourth proportional to 1,245,015.72, 1,868,106.78 and 613,585.08 is: 920,665.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,015.72 : 1,868,106.78 = 613,585.08 : x
  2. Step 2: Convert to fraction form
    1,245,015.72/1,868,106.78 = 613,585.08/x
  3. Step 3: Cross multiply
    1,245,015.72x = 1,868,106.78 × 613,585.08
  4. Step 4: Simplify right side
    1,245,015.72x = 1,146,242,448,054.84
  5. Step 5: Solve for x
    x = 1,146,242,448,054.84/1,245,015.72
  6. Step 6: Final answer
    x = 920,665.04

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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.