Home / 1,038,515.30-1,555,148.55-828,563.30

Finding the Fourth Proportional to 1,038,515.30, 1,555,148.55 and 828,563.30

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Solution

The fourth proportional to 1,038,515.30, 1,555,148.55 and 828,563.30 is: 1,240,751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,515.30 : 1,555,148.55 = 828,563.30 : x
  2. Step 2: Convert to fraction form
    1,038,515.30/1,555,148.55 = 828,563.30/x
  3. Step 3: Cross multiply
    1,038,515.30x = 1,555,148.55 × 828,563.30
  4. Step 4: Simplify right side
    1,038,515.30x = 1,288,539,014,578.22
  5. Step 5: Solve for x
    x = 1,288,539,014,578.22/1,038,515.30
  6. Step 6: Final answer
    x = 1,240,751.11

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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.