Home / 1,422,642.30-1,963,123.53-802,413.33

Finding the Fourth Proportional to 1,422,642.30, 1,963,123.53 and 802,413.33

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Solution

The fourth proportional to 1,422,642.30, 1,963,123.53 and 802,413.33 is: 1,107,261.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,642.30 : 1,963,123.53 = 802,413.33 : x
  2. Step 2: Convert to fraction form
    1,422,642.30/1,963,123.53 = 802,413.33/x
  3. Step 3: Cross multiply
    1,422,642.30x = 1,963,123.53 × 802,413.33
  4. Step 4: Simplify right side
    1,422,642.30x = 1,575,236,488,908.65
  5. Step 5: Solve for x
    x = 1,575,236,488,908.65/1,422,642.30
  6. Step 6: Final answer
    x = 1,107,261.11

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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.