Home / 856,419.96-1,285,426.98-436,010.52

Finding the Fourth Proportional to 856,419.96, 1,285,426.98 and 436,010.52

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Solution

The fourth proportional to 856,419.96, 1,285,426.98 and 436,010.52 is: 654,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,419.96 : 1,285,426.98 = 436,010.52 : x
  2. Step 2: Convert to fraction form
    856,419.96/1,285,426.98 = 436,010.52/x
  3. Step 3: Cross multiply
    856,419.96x = 1,285,426.98 × 436,010.52
  4. Step 4: Simplify right side
    856,419.96x = 560,459,685,971.83
  5. Step 5: Solve for x
    x = 560,459,685,971.83/856,419.96
  6. Step 6: Final answer
    x = 654,421.56

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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.