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Finding the Fourth Proportional to 879,796.40, 1,319,694.60 and 655,847.60

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Solution

The fourth proportional to 879,796.40, 1,319,694.60 and 655,847.60 is: 983,771.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,796.40 : 1,319,694.60 = 655,847.60 : x
  2. Step 2: Convert to fraction form
    879,796.40/1,319,694.60 = 655,847.60/x
  3. Step 3: Cross multiply
    879,796.40x = 1,319,694.60 × 655,847.60
  4. Step 4: Simplify right side
    879,796.40x = 865,518,536,142.96
  5. Step 5: Solve for x
    x = 865,518,536,142.96/879,796.40
  6. Step 6: Final answer
    x = 983,771.40

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Similar ratio
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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.