Home / 790,696.76-1,091,156.54-428,119.49

Finding the Fourth Proportional to 790,696.76, 1,091,156.54 and 428,119.49

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Solution

The fourth proportional to 790,696.76, 1,091,156.54 and 428,119.49 is: 590,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,696.76 : 1,091,156.54 = 428,119.49 : x
  2. Step 2: Convert to fraction form
    790,696.76/1,091,156.54 = 428,119.49/x
  3. Step 3: Cross multiply
    790,696.76x = 1,091,156.54 × 428,119.49
  4. Step 4: Simplify right side
    790,696.76x = 467,145,382,002.26
  5. Step 5: Solve for x
    x = 467,145,382,002.26/790,696.76
  6. Step 6: Final answer
    x = 590,802.20

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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.