Home / 909,307.35-1,364,015.69-278,226.63

Finding the Fourth Proportional to 909,307.35, 1,364,015.69 and 278,226.63

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Solution

The fourth proportional to 909,307.35, 1,364,015.69 and 278,226.63 is: 417,356.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,307.35 : 1,364,015.69 = 278,226.63 : x
  2. Step 2: Convert to fraction form
    909,307.35/1,364,015.69 = 278,226.63/x
  3. Step 3: Cross multiply
    909,307.35x = 1,364,015.69 × 278,226.63
  4. Step 4: Simplify right side
    909,307.35x = 379,505,481,875.75
  5. Step 5: Solve for x
    x = 379,505,481,875.75/909,307.35
  6. Step 6: Final answer
    x = 417,356.67

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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.