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Finding the Fourth Proportional to 988,984.80, 1,483,089 and 349,151.98

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Solution

The fourth proportional to 988,984.80, 1,483,089 and 349,151.98 is: 523,590.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,984.80 : 1,483,089 = 349,151.98 : x
  2. Step 2: Convert to fraction form
    988,984.80/1,483,089 = 349,151.98/x
  3. Step 3: Cross multiply
    988,984.80x = 1,483,089 × 349,151.98
  4. Step 4: Simplify right side
    988,984.80x = 517,823,453,450.78
  5. Step 5: Solve for x
    x = 517,823,453,450.78/988,984.80
  6. Step 6: Final answer
    x = 523,590.91

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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.