Home / 874,838.03-1,312,257.07-209,990.03

Finding the Fourth Proportional to 874,838.03, 1,312,257.07 and 209,990.03

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Solution

The fourth proportional to 874,838.03, 1,312,257.07 and 209,990.03 is: 314,985.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,838.03 : 1,312,257.07 = 209,990.03 : x
  2. Step 2: Convert to fraction form
    874,838.03/1,312,257.07 = 209,990.03/x
  3. Step 3: Cross multiply
    874,838.03x = 1,312,257.07 × 209,990.03
  4. Step 4: Simplify right side
    874,838.03x = 275,560,901,497.01
  5. Step 5: Solve for x
    x = 275,560,901,497.01/874,838.03
  6. Step 6: Final answer
    x = 314,985.05

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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.