Home / 767,872.55-1,059,662.86-423,708.21

Finding the Fourth Proportional to 767,872.55, 1,059,662.86 and 423,708.21

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Solution

The fourth proportional to 767,872.55, 1,059,662.86 and 423,708.21 is: 584,716.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,872.55 : 1,059,662.86 = 423,708.21 : x
  2. Step 2: Convert to fraction form
    767,872.55/1,059,662.86 = 423,708.21/x
  3. Step 3: Cross multiply
    767,872.55x = 1,059,662.86 × 423,708.21
  4. Step 4: Simplify right side
    767,872.55x = 448,987,852,554.81
  5. Step 5: Solve for x
    x = 448,987,852,554.81/767,872.55
  6. Step 6: Final answer
    x = 584,716.63

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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.