Home / 828,452.80-1,240,929.60-739,806.40

Finding the Fourth Proportional to 828,452.80, 1,240,929.60 and 739,806.40

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Solution

The fourth proportional to 828,452.80, 1,240,929.60 and 739,806.40 is: 1,108,147.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,452.80 : 1,240,929.60 = 739,806.40 : x
  2. Step 2: Convert to fraction form
    828,452.80/1,240,929.60 = 739,806.40/x
  3. Step 3: Cross multiply
    828,452.80x = 1,240,929.60 × 739,806.40
  4. Step 4: Simplify right side
    828,452.80x = 918,047,660,029.44
  5. Step 5: Solve for x
    x = 918,047,660,029.44/828,452.80
  6. Step 6: Final answer
    x = 1,108,147.21

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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.