Home / 890,261.11-1,336,725.74-770,686.89

Finding the Fourth Proportional to 890,261.11, 1,336,725.74 and 770,686.89

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Solution

The fourth proportional to 890,261.11, 1,336,725.74 and 770,686.89 is: 1,157,185.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,261.11 : 1,336,725.74 = 770,686.89 : x
  2. Step 2: Convert to fraction form
    890,261.11/1,336,725.74 = 770,686.89/x
  3. Step 3: Cross multiply
    890,261.11x = 1,336,725.74 × 770,686.89
  4. Step 4: Simplify right side
    890,261.11x = 1,030,197,003,343.55
  5. Step 5: Solve for x
    x = 1,030,197,003,343.55/890,261.11
  6. Step 6: Final answer
    x = 1,157,185.23

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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.