Home / 856,421.96-1,285,429.98-436,012.52

Finding the Fourth Proportional to 856,421.96, 1,285,429.98 and 436,012.52

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Solution

The fourth proportional to 856,421.96, 1,285,429.98 and 436,012.52 is: 654,424.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,421.96 : 1,285,429.98 = 436,012.52 : x
  2. Step 2: Convert to fraction form
    856,421.96/1,285,429.98 = 436,012.52/x
  3. Step 3: Cross multiply
    856,421.96x = 1,285,429.98 × 436,012.52
  4. Step 4: Simplify right side
    856,421.96x = 560,463,564,863.35
  5. Step 5: Solve for x
    x = 560,463,564,863.35/856,421.96
  6. Step 6: Final answer
    x = 654,424.56

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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.