Home / 1,217,422.34-1,680,580.91-727,564.67

Finding the Fourth Proportional to 1,217,422.34, 1,680,580.91 and 727,564.67

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Solution

The fourth proportional to 1,217,422.34, 1,680,580.91 and 727,564.67 is: 1,004,360.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,422.34 : 1,680,580.91 = 727,564.67 : x
  2. Step 2: Convert to fraction form
    1,217,422.34/1,680,580.91 = 727,564.67/x
  3. Step 3: Cross multiply
    1,217,422.34x = 1,680,580.91 × 727,564.67
  4. Step 4: Simplify right side
    1,217,422.34x = 1,222,731,288,608.46
  5. Step 5: Solve for x
    x = 1,222,731,288,608.46/1,217,422.34
  6. Step 6: Final answer
    x = 1,004,360.82

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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.