Home / 464,647.08-641,408.70-313,948.20

Finding the Fourth Proportional to 464,647.08, 641,408.70 and 313,948.20

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Solution

The fourth proportional to 464,647.08, 641,408.70 and 313,948.20 is: 433,380.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,647.08 : 641,408.70 = 313,948.20 : x
  2. Step 2: Convert to fraction form
    464,647.08/641,408.70 = 313,948.20/x
  3. Step 3: Cross multiply
    464,647.08x = 641,408.70 × 313,948.20
  4. Step 4: Simplify right side
    464,647.08x = 201,369,106,829.34
  5. Step 5: Solve for x
    x = 201,369,106,829.34/464,647.08
  6. Step 6: Final answer
    x = 433,380.76

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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.