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Finding the Fourth Proportional to 655,846.26, 905,132.40 and 383,897.67

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Solution

The fourth proportional to 655,846.26, 905,132.40 and 383,897.67 is: 529,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,846.26 : 905,132.40 = 383,897.67 : x
  2. Step 2: Convert to fraction form
    655,846.26/905,132.40 = 383,897.67/x
  3. Step 3: Cross multiply
    655,846.26x = 905,132.40 × 383,897.67
  4. Step 4: Simplify right side
    655,846.26x = 347,478,219,401.51
  5. Step 5: Solve for x
    x = 347,478,219,401.51/655,846.26
  6. Step 6: Final answer
    x = 529,816.58

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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.