Home / 446,977.12-670,022.82-209,895.40

Finding the Fourth Proportional to 446,977.12, 670,022.82 and 209,895.40

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Solution

The fourth proportional to 446,977.12, 670,022.82 and 209,895.40 is: 314,635.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,977.12 : 670,022.82 = 209,895.40 : x
  2. Step 2: Convert to fraction form
    446,977.12/670,022.82 = 209,895.40/x
  3. Step 3: Cross multiply
    446,977.12x = 670,022.82 × 209,895.40
  4. Step 4: Simplify right side
    446,977.12x = 140,634,707,813.03
  5. Step 5: Solve for x
    x = 140,634,707,813.03/446,977.12
  6. Step 6: Final answer
    x = 314,635.14

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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.