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Finding the Fourth Proportional to 543,872.90, 750,557.96 and 298,855.67

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Solution

The fourth proportional to 543,872.90, 750,557.96 and 298,855.67 is: 412,428.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,872.90 : 750,557.96 = 298,855.67 : x
  2. Step 2: Convert to fraction form
    543,872.90/750,557.96 = 298,855.67/x
  3. Step 3: Cross multiply
    543,872.90x = 750,557.96 × 298,855.67
  4. Step 4: Simplify right side
    543,872.90x = 224,308,496,762.57
  5. Step 5: Solve for x
    x = 224,308,496,762.57/543,872.90
  6. Step 6: Final answer
    x = 412,428.16

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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.