Home / 828,907.80-1,244,283.30-513,720.60

Finding the Fourth Proportional to 828,907.80, 1,244,283.30 and 513,720.60

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Solution

The fourth proportional to 828,907.80, 1,244,283.30 and 513,720.60 is: 771,152.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,907.80 : 1,244,283.30 = 513,720.60 : x
  2. Step 2: Convert to fraction form
    828,907.80/1,244,283.30 = 513,720.60/x
  3. Step 3: Cross multiply
    828,907.80x = 1,244,283.30 × 513,720.60
  4. Step 4: Simplify right side
    828,907.80x = 639,213,963,445.98
  5. Step 5: Solve for x
    x = 639,213,963,445.98/828,907.80
  6. Step 6: Final answer
    x = 771,152.07

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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.