Home / 856,834.98-1,282,856.31-645,811.62

Finding the Fourth Proportional to 856,834.98, 1,282,856.31 and 645,811.62

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Solution

The fourth proportional to 856,834.98, 1,282,856.31 and 645,811.62 is: 966,911.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,834.98 : 1,282,856.31 = 645,811.62 : x
  2. Step 2: Convert to fraction form
    856,834.98/1,282,856.31 = 645,811.62/x
  3. Step 3: Cross multiply
    856,834.98x = 1,282,856.31 × 645,811.62
  4. Step 4: Simplify right side
    856,834.98x = 828,483,511,788.32
  5. Step 5: Solve for x
    x = 828,483,511,788.32/856,834.98
  6. Step 6: Final answer
    x = 966,911.40

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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.