Home / 945,647.49-1,304,992.03-515,927.67

Finding the Fourth Proportional to 945,647.49, 1,304,992.03 and 515,927.67

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Solution

The fourth proportional to 945,647.49, 1,304,992.03 and 515,927.67 is: 711,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,647.49 : 1,304,992.03 = 515,927.67 : x
  2. Step 2: Convert to fraction form
    945,647.49/1,304,992.03 = 515,927.67/x
  3. Step 3: Cross multiply
    945,647.49x = 1,304,992.03 × 515,927.67
  4. Step 4: Simplify right side
    945,647.49x = 673,281,494,826.83
  5. Step 5: Solve for x
    x = 673,281,494,826.83/945,647.49
  6. Step 6: Final answer
    x = 711,979.36

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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.