Home / 789,978.34-1,184,967.51-434,809.54

Finding the Fourth Proportional to 789,978.34, 1,184,967.51 and 434,809.54

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Solution

The fourth proportional to 789,978.34, 1,184,967.51 and 434,809.54 is: 652,214.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,978.34 : 1,184,967.51 = 434,809.54 : x
  2. Step 2: Convert to fraction form
    789,978.34/1,184,967.51 = 434,809.54/x
  3. Step 3: Cross multiply
    789,978.34x = 1,184,967.51 × 434,809.54
  4. Step 4: Simplify right side
    789,978.34x = 515,235,177,938.05
  5. Step 5: Solve for x
    x = 515,235,177,938.05/789,978.34
  6. Step 6: Final answer
    x = 652,214.31

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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.