Home / 677,751.40-1,017,030.30-257,069.80

Finding the Fourth Proportional to 677,751.40, 1,017,030.30 and 257,069.80

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Solution

The fourth proportional to 677,751.40, 1,017,030.30 and 257,069.80 is: 385,757.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,751.40 : 1,017,030.30 = 257,069.80 : x
  2. Step 2: Convert to fraction form
    677,751.40/1,017,030.30 = 257,069.80/x
  3. Step 3: Cross multiply
    677,751.40x = 1,017,030.30 × 257,069.80
  4. Step 4: Simplify right side
    677,751.40x = 261,447,775,814.94
  5. Step 5: Solve for x
    x = 261,447,775,814.94/677,751.40
  6. Step 6: Final answer
    x = 385,757.63

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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.