Home / 446,918.40-669,807.36-209,737.44

Finding the Fourth Proportional to 446,918.40, 669,807.36 and 209,737.44

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Solution

The fourth proportional to 446,918.40, 669,807.36 and 209,737.44 is: 314,338.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,918.40 : 669,807.36 = 209,737.44 : x
  2. Step 2: Convert to fraction form
    446,918.40/669,807.36 = 209,737.44/x
  3. Step 3: Cross multiply
    446,918.40x = 669,807.36 × 209,737.44
  4. Step 4: Simplify right side
    446,918.40x = 140,483,680,979.56
  5. Step 5: Solve for x
    x = 140,483,680,979.56/446,918.40
  6. Step 6: Final answer
    x = 314,338.55

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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.