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Finding the Fourth Proportional to 886,683.36, 1,330,212.08 and 287,598

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Solution

The fourth proportional to 886,683.36, 1,330,212.08 and 287,598 is: 431,457.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,683.36 : 1,330,212.08 = 287,598 : x
  2. Step 2: Convert to fraction form
    886,683.36/1,330,212.08 = 287,598/x
  3. Step 3: Cross multiply
    886,683.36x = 1,330,212.08 × 287,598
  4. Step 4: Simplify right side
    886,683.36x = 382,566,333,783.84
  5. Step 5: Solve for x
    x = 382,566,333,783.84/886,683.36
  6. Step 6: Final answer
    x = 431,457.67

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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.