Home / 1,299,697.92-1,948,907.52-458,127.36

Finding the Fourth Proportional to 1,299,697.92, 1,948,907.52 and 458,127.36

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Solution

The fourth proportional to 1,299,697.92, 1,948,907.52 and 458,127.36 is: 686,965.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,697.92 : 1,948,907.52 = 458,127.36 : x
  2. Step 2: Convert to fraction form
    1,299,697.92/1,948,907.52 = 458,127.36/x
  3. Step 3: Cross multiply
    1,299,697.92x = 1,948,907.52 × 458,127.36
  4. Step 4: Simplify right side
    1,299,697.92x = 892,847,857,021.75
  5. Step 5: Solve for x
    x = 892,847,857,021.75/1,299,697.92
  6. Step 6: Final answer
    x = 686,965.67

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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.