Home / 790,796.84-1,091,297.66-428,220.69

Finding the Fourth Proportional to 790,796.84, 1,091,297.66 and 428,220.69

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Solution

The fourth proportional to 790,796.84, 1,091,297.66 and 428,220.69 is: 590,943.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,796.84 : 1,091,297.66 = 428,220.69 : x
  2. Step 2: Convert to fraction form
    790,796.84/1,091,297.66 = 428,220.69/x
  3. Step 3: Cross multiply
    790,796.84x = 1,091,297.66 × 428,220.69
  4. Step 4: Simplify right side
    790,796.84x = 467,316,239,274.41
  5. Step 5: Solve for x
    x = 467,316,239,274.41/790,796.84
  6. Step 6: Final answer
    x = 590,943.48

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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.