Home / 768,144.47-1,060,033.64-423,980.33

Finding the Fourth Proportional to 768,144.47, 1,060,033.64 and 423,980.33

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Solution

The fourth proportional to 768,144.47, 1,060,033.64 and 423,980.33 is: 585,089.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,144.47 : 1,060,033.64 = 423,980.33 : x
  2. Step 2: Convert to fraction form
    768,144.47/1,060,033.64 = 423,980.33/x
  3. Step 3: Cross multiply
    768,144.47x = 1,060,033.64 × 423,980.33
  4. Step 4: Simplify right side
    768,144.47x = 449,433,405,078.23
  5. Step 5: Solve for x
    x = 449,433,405,078.23/768,144.47
  6. Step 6: Final answer
    x = 585,089.69

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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.