Home / 1,217,395.30-1,680,543.61-727,537.67

Finding the Fourth Proportional to 1,217,395.30, 1,680,543.61 and 727,537.67

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Solution

The fourth proportional to 1,217,395.30, 1,680,543.61 and 727,537.67 is: 1,004,323.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,395.30 : 1,680,543.61 = 727,537.67 : x
  2. Step 2: Convert to fraction form
    1,217,395.30/1,680,543.61 = 727,537.67/x
  3. Step 3: Cross multiply
    1,217,395.30x = 1,680,543.61 × 727,537.67
  4. Step 4: Simplify right side
    1,217,395.30x = 1,222,658,782,352.79
  5. Step 5: Solve for x
    x = 1,222,658,782,352.79/1,217,395.30
  6. Step 6: Final answer
    x = 1,004,323.56

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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.