Home / 698,619.87-1,047,936.47-382,904.55

Finding the Fourth Proportional to 698,619.87, 1,047,936.47 and 382,904.55

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Solution

The fourth proportional to 698,619.87, 1,047,936.47 and 382,904.55 is: 574,360.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,619.87 : 1,047,936.47 = 382,904.55 : x
  2. Step 2: Convert to fraction form
    698,619.87/1,047,936.47 = 382,904.55/x
  3. Step 3: Cross multiply
    698,619.87x = 1,047,936.47 × 382,904.55
  4. Step 4: Simplify right side
    698,619.87x = 401,259,640,559.42
  5. Step 5: Solve for x
    x = 401,259,640,559.42/698,619.87
  6. Step 6: Final answer
    x = 574,360.48

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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.