Home / 698,312.88-1,047,928.72-382,991.28

Finding the Fourth Proportional to 698,312.88, 1,047,928.72 and 382,991.28

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Solution

The fourth proportional to 698,312.88, 1,047,928.72 and 382,991.28 is: 574,738.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,312.88 : 1,047,928.72 = 382,991.28 : x
  2. Step 2: Convert to fraction form
    698,312.88/1,047,928.72 = 382,991.28/x
  3. Step 3: Cross multiply
    698,312.88x = 1,047,928.72 × 382,991.28
  4. Step 4: Simplify right side
    698,312.88x = 401,347,561,821.56
  5. Step 5: Solve for x
    x = 401,347,561,821.56/698,312.88
  6. Step 6: Final answer
    x = 574,738.88

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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.