Home / 879,084.80-1,318,627.20-288,108.80

Finding the Fourth Proportional to 879,084.80, 1,318,627.20 and 288,108.80

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Solution

The fourth proportional to 879,084.80, 1,318,627.20 and 288,108.80 is: 432,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,084.80 : 1,318,627.20 = 288,108.80 : x
  2. Step 2: Convert to fraction form
    879,084.80/1,318,627.20 = 288,108.80/x
  3. Step 3: Cross multiply
    879,084.80x = 1,318,627.20 × 288,108.80
  4. Step 4: Simplify right side
    879,084.80x = 379,908,100,239.36
  5. Step 5: Solve for x
    x = 379,908,100,239.36/879,084.80
  6. Step 6: Final answer
    x = 432,163.20

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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.