Home / 2,987,942.40-4,123,364.40-1,629,838.08

Finding the Fourth Proportional to 2,987,942.40, 4,123,364.40 and 1,629,838.08

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Solution

The fourth proportional to 2,987,942.40, 4,123,364.40 and 1,629,838.08 is: 2,249,178.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,942.40 : 4,123,364.40 = 1,629,838.08 : x
  2. Step 2: Convert to fraction form
    2,987,942.40/4,123,364.40 = 1,629,838.08/x
  3. Step 3: Cross multiply
    2,987,942.40x = 4,123,364.40 × 1,629,838.08
  4. Step 4: Simplify right side
    2,987,942.40x = 6,720,416,316,836.35
  5. Step 5: Solve for x
    x = 6,720,416,316,836.35/2,987,942.40
  6. Step 6: Final answer
    x = 2,249,178.67

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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.