Home / 715,317.84-1,073,142.82-209,858.40

Finding the Fourth Proportional to 715,317.84, 1,073,142.82 and 209,858.40

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Solution

The fourth proportional to 715,317.84, 1,073,142.82 and 209,858.40 is: 314,836.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,317.84 : 1,073,142.82 = 209,858.40 : x
  2. Step 2: Convert to fraction form
    715,317.84/1,073,142.82 = 209,858.40/x
  3. Step 3: Cross multiply
    715,317.84x = 1,073,142.82 × 209,858.40
  4. Step 4: Simplify right side
    715,317.84x = 225,208,035,176.69
  5. Step 5: Solve for x
    x = 225,208,035,176.69/715,317.84
  6. Step 6: Final answer
    x = 314,836.32

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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.