Home / 919,658.89-1,379,546.66-288,597.61

Finding the Fourth Proportional to 919,658.89, 1,379,546.66 and 288,597.61

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Solution

The fourth proportional to 919,658.89, 1,379,546.66 and 288,597.61 is: 432,914.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,658.89 : 1,379,546.66 = 288,597.61 : x
  2. Step 2: Convert to fraction form
    919,658.89/1,379,546.66 = 288,597.61/x
  3. Step 3: Cross multiply
    919,658.89x = 1,379,546.66 × 288,597.61
  4. Step 4: Simplify right side
    919,658.89x = 398,133,868,959.48
  5. Step 5: Solve for x
    x = 398,133,868,959.48/919,658.89
  6. Step 6: Final answer
    x = 432,914.72

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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.