Home / 866,999.20-1,300,498.80-798,570.40

Finding the Fourth Proportional to 866,999.20, 1,300,498.80 and 798,570.40

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Solution

The fourth proportional to 866,999.20, 1,300,498.80 and 798,570.40 is: 1,197,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,999.20 : 1,300,498.80 = 798,570.40 : x
  2. Step 2: Convert to fraction form
    866,999.20/1,300,498.80 = 798,570.40/x
  3. Step 3: Cross multiply
    866,999.20x = 1,300,498.80 × 798,570.40
  4. Step 4: Simplify right side
    866,999.20x = 1,038,539,846,915.52
  5. Step 5: Solve for x
    x = 1,038,539,846,915.52/866,999.20
  6. Step 6: Final answer
    x = 1,197,855.60

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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.