Home / 879,231.40-1,318,847.10-658,047.40

Finding the Fourth Proportional to 879,231.40, 1,318,847.10 and 658,047.40

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Solution

The fourth proportional to 879,231.40, 1,318,847.10 and 658,047.40 is: 987,071.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,231.40 : 1,318,847.10 = 658,047.40 : x
  2. Step 2: Convert to fraction form
    879,231.40/1,318,847.10 = 658,047.40/x
  3. Step 3: Cross multiply
    879,231.40x = 1,318,847.10 × 658,047.40
  4. Step 4: Simplify right side
    879,231.40x = 867,863,905,152.54
  5. Step 5: Solve for x
    x = 867,863,905,152.54/879,231.40
  6. Step 6: Final answer
    x = 987,071.10

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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.