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Finding the Fourth Proportional to 550,273.50, 759,136.86 and 389,266.56

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Solution

The fourth proportional to 550,273.50, 759,136.86 and 389,266.56 is: 537,017.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,273.50 : 759,136.86 = 389,266.56 : x
  2. Step 2: Convert to fraction form
    550,273.50/759,136.86 = 389,266.56/x
  3. Step 3: Cross multiply
    550,273.50x = 759,136.86 × 389,266.56
  4. Step 4: Simplify right side
    550,273.50x = 295,506,594,061.40
  5. Step 5: Solve for x
    x = 295,506,594,061.40/550,273.50
  6. Step 6: Final answer
    x = 537,017.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.