Home / 780,264.90-1,170,164.07-406,083.78

Finding the Fourth Proportional to 780,264.90, 1,170,164.07 and 406,083.78

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Solution

The fourth proportional to 780,264.90, 1,170,164.07 and 406,083.78 is: 609,004.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,264.90 : 1,170,164.07 = 406,083.78 : x
  2. Step 2: Convert to fraction form
    780,264.90/1,170,164.07 = 406,083.78/x
  3. Step 3: Cross multiply
    780,264.90x = 1,170,164.07 × 406,083.78
  4. Step 4: Simplify right side
    780,264.90x = 475,184,648,765.79
  5. Step 5: Solve for x
    x = 475,184,648,765.79/780,264.90
  6. Step 6: Final answer
    x = 609,004.26

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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.