Home / 677,469.16-1,016,762.80-340,605.56

Finding the Fourth Proportional to 677,469.16, 1,016,762.80 and 340,605.56

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Solution

The fourth proportional to 677,469.16, 1,016,762.80 and 340,605.56 is: 511,189.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,469.16 : 1,016,762.80 = 340,605.56 : x
  2. Step 2: Convert to fraction form
    677,469.16/1,016,762.80 = 340,605.56/x
  3. Step 3: Cross multiply
    677,469.16x = 1,016,762.80 × 340,605.56
  4. Step 4: Simplify right side
    677,469.16x = 346,315,062,881.17
  5. Step 5: Solve for x
    x = 346,315,062,881.17/677,469.16
  6. Step 6: Final answer
    x = 511,189.41

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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.