Home / 812,646.30-1,217,848.41-612,747

Finding the Fourth Proportional to 812,646.30, 1,217,848.41 and 612,747

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Solution

The fourth proportional to 812,646.30, 1,217,848.41 and 612,747 is: 918,275.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,646.30 : 1,217,848.41 = 612,747 : x
  2. Step 2: Convert to fraction form
    812,646.30/1,217,848.41 = 612,747/x
  3. Step 3: Cross multiply
    812,646.30x = 1,217,848.41 × 612,747
  4. Step 4: Simplify right side
    812,646.30x = 746,232,959,682.27
  5. Step 5: Solve for x
    x = 746,232,959,682.27/812,646.30
  6. Step 6: Final answer
    x = 918,275.22

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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.