Home / 1,208,015.05-1,667,061.84-664,160.08

Finding the Fourth Proportional to 1,208,015.05, 1,667,061.84 and 664,160.08

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Solution

The fourth proportional to 1,208,015.05, 1,667,061.84 and 664,160.08 is: 916,541.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,015.05 : 1,667,061.84 = 664,160.08 : x
  2. Step 2: Convert to fraction form
    1,208,015.05/1,667,061.84 = 664,160.08/x
  3. Step 3: Cross multiply
    1,208,015.05x = 1,667,061.84 × 664,160.08
  4. Step 4: Simplify right side
    1,208,015.05x = 1,107,195,925,019.35
  5. Step 5: Solve for x
    x = 1,107,195,925,019.35/1,208,015.05
  6. Step 6: Final answer
    x = 916,541.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.