Home / 915,765.72-1,263,821.46-507,906.42

Finding the Fourth Proportional to 915,765.72, 1,263,821.46 and 507,906.42

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Solution

The fourth proportional to 915,765.72, 1,263,821.46 and 507,906.42 is: 700,946.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,765.72 : 1,263,821.46 = 507,906.42 : x
  2. Step 2: Convert to fraction form
    915,765.72/1,263,821.46 = 507,906.42/x
  3. Step 3: Cross multiply
    915,765.72x = 1,263,821.46 × 507,906.42
  4. Step 4: Simplify right side
    915,765.72x = 641,903,033,267.77
  5. Step 5: Solve for x
    x = 641,903,033,267.77/915,765.72
  6. Step 6: Final answer
    x = 700,946.78

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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.