Home / 812,645.55-1,217,847.29-612,746.24

Finding the Fourth Proportional to 812,645.55, 1,217,847.29 and 612,746.24

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Solution

The fourth proportional to 812,645.55, 1,217,847.29 and 612,746.24 is: 918,274.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,645.55 : 1,217,847.29 = 612,746.24 : x
  2. Step 2: Convert to fraction form
    812,645.55/1,217,847.29 = 612,746.24/x
  3. Step 3: Cross multiply
    812,645.55x = 1,217,847.29 × 612,746.24
  4. Step 4: Simplify right side
    812,645.55x = 746,231,338,688.72
  5. Step 5: Solve for x
    x = 746,231,338,688.72/812,645.55
  6. Step 6: Final answer
    x = 918,274.07

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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.