Home / 1,001,851.48-1,382,696.76-620,001.28

Finding the Fourth Proportional to 1,001,851.48, 1,382,696.76 and 620,001.28

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Solution

The fourth proportional to 1,001,851.48, 1,382,696.76 and 620,001.28 is: 855,689.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,851.48 : 1,382,696.76 = 620,001.28 : x
  2. Step 2: Convert to fraction form
    1,001,851.48/1,382,696.76 = 620,001.28/x
  3. Step 3: Cross multiply
    1,001,851.48x = 1,382,696.76 × 620,001.28
  4. Step 4: Simplify right side
    1,001,851.48x = 857,273,761,051.85
  5. Step 5: Solve for x
    x = 857,273,761,051.85/1,001,851.48
  6. Step 6: Final answer
    x = 855,689.47

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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.