Home / 767,674.08-1,059,392.07-428,164.20

Finding the Fourth Proportional to 767,674.08, 1,059,392.07 and 428,164.20

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Solution

The fourth proportional to 767,674.08, 1,059,392.07 and 428,164.20 is: 590,867.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,674.08 : 1,059,392.07 = 428,164.20 : x
  2. Step 2: Convert to fraction form
    767,674.08/1,059,392.07 = 428,164.20/x
  3. Step 3: Cross multiply
    767,674.08x = 1,059,392.07 × 428,164.20
  4. Step 4: Simplify right side
    767,674.08x = 453,593,758,137.89
  5. Step 5: Solve for x
    x = 453,593,758,137.89/767,674.08
  6. Step 6: Final answer
    x = 590,867.62

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Double scale
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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.