Home / 698,340.96-1,047,970.80-383,019.30

Finding the Fourth Proportional to 698,340.96, 1,047,970.80 and 383,019.30

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Solution

The fourth proportional to 698,340.96, 1,047,970.80 and 383,019.30 is: 574,780.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,340.96 : 1,047,970.80 = 383,019.30 : x
  2. Step 2: Convert to fraction form
    698,340.96/1,047,970.80 = 383,019.30/x
  3. Step 3: Cross multiply
    698,340.96x = 1,047,970.80 × 383,019.30
  4. Step 4: Simplify right side
    698,340.96x = 401,393,042,236.44
  5. Step 5: Solve for x
    x = 401,393,042,236.44/698,340.96
  6. Step 6: Final answer
    x = 574,780.90

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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.