Home / 746,668.88-1,030,407.72-407,142.80

Finding the Fourth Proportional to 746,668.88, 1,030,407.72 and 407,142.80

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Solution

The fourth proportional to 746,668.88, 1,030,407.72 and 407,142.80 is: 561,859.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,668.88 : 1,030,407.72 = 407,142.80 : x
  2. Step 2: Convert to fraction form
    746,668.88/1,030,407.72 = 407,142.80/x
  3. Step 3: Cross multiply
    746,668.88x = 1,030,407.72 × 407,142.80
  4. Step 4: Simplify right side
    746,668.88x = 419,523,084,262.42
  5. Step 5: Solve for x
    x = 419,523,084,262.42/746,668.88
  6. Step 6: Final answer
    x = 561,859.61

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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.