Home / 828,150.90-1,142,821.62-465,589.98

Finding the Fourth Proportional to 828,150.90, 1,142,821.62 and 465,589.98

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Solution

The fourth proportional to 828,150.90, 1,142,821.62 and 465,589.98 is: 642,499.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,150.90 : 1,142,821.62 = 465,589.98 : x
  2. Step 2: Convert to fraction form
    828,150.90/1,142,821.62 = 465,589.98/x
  3. Step 3: Cross multiply
    828,150.90x = 1,142,821.62 × 465,589.98
  4. Step 4: Simplify right side
    828,150.90x = 532,086,295,199.37
  5. Step 5: Solve for x
    x = 532,086,295,199.37/828,150.90
  6. Step 6: Final answer
    x = 642,499.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.