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Finding the Fourth Proportional to 488,981.91, 733,330.53 and 189,395.67

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Solution

The fourth proportional to 488,981.91, 733,330.53 and 189,395.67 is: 284,038.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,981.91 : 733,330.53 = 189,395.67 : x
  2. Step 2: Convert to fraction form
    488,981.91/733,330.53 = 189,395.67/x
  3. Step 3: Cross multiply
    488,981.91x = 733,330.53 × 189,395.67
  4. Step 4: Simplify right side
    488,981.91x = 138,889,627,060.81
  5. Step 5: Solve for x
    x = 138,889,627,060.81/488,981.91
  6. Step 6: Final answer
    x = 284,038.37

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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.