Home / 677,042.20-1,015,271.70-339,952.60

Finding the Fourth Proportional to 677,042.20, 1,015,271.70 and 339,952.60

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Solution

The fourth proportional to 677,042.20, 1,015,271.70 and 339,952.60 is: 509,782.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,042.20 : 1,015,271.70 = 339,952.60 : x
  2. Step 2: Convert to fraction form
    677,042.20/1,015,271.70 = 339,952.60/x
  3. Step 3: Cross multiply
    677,042.20x = 1,015,271.70 × 339,952.60
  4. Step 4: Simplify right side
    677,042.20x = 345,144,254,121.42
  5. Step 5: Solve for x
    x = 345,144,254,121.42/677,042.20
  6. Step 6: Final answer
    x = 509,782.48

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1.5x scale

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.