Home / 749,668.40-1,124,891.40-328,986.80

Finding the Fourth Proportional to 749,668.40, 1,124,891.40 and 328,986.80

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Solution

The fourth proportional to 749,668.40, 1,124,891.40 and 328,986.80 is: 493,650.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,668.40 : 1,124,891.40 = 328,986.80 : x
  2. Step 2: Convert to fraction form
    749,668.40/1,124,891.40 = 328,986.80/x
  3. Step 3: Cross multiply
    749,668.40x = 1,124,891.40 × 328,986.80
  4. Step 4: Simplify right side
    749,668.40x = 370,074,422,033.52
  5. Step 5: Solve for x
    x = 370,074,422,033.52/749,668.40
  6. Step 6: Final answer
    x = 493,650.82

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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.