Home / 743,993.18-1,026,790.88-421,668.67

Finding the Fourth Proportional to 743,993.18, 1,026,790.88 and 421,668.67

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Solution

The fourth proportional to 743,993.18, 1,026,790.88 and 421,668.67 is: 581,948.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,993.18 : 1,026,790.88 = 421,668.67 : x
  2. Step 2: Convert to fraction form
    743,993.18/1,026,790.88 = 421,668.67/x
  3. Step 3: Cross multiply
    743,993.18x = 1,026,790.88 × 421,668.67
  4. Step 4: Simplify right side
    743,993.18x = 432,965,544,359.53
  5. Step 5: Solve for x
    x = 432,965,544,359.53/743,993.18
  6. Step 6: Final answer
    x = 581,948.27

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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.