Home / 1,428,326.91-1,968,636.63-1,361,060.31

Finding the Fourth Proportional to 1,428,326.91, 1,968,636.63 and 1,361,060.31

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Solution

The fourth proportional to 1,428,326.91, 1,968,636.63 and 1,361,060.31 is: 1,875,924.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,326.91 : 1,968,636.63 = 1,361,060.31 : x
  2. Step 2: Convert to fraction form
    1,428,326.91/1,968,636.63 = 1,361,060.31/x
  3. Step 3: Cross multiply
    1,428,326.91x = 1,968,636.63 × 1,361,060.31
  4. Step 4: Simplify right side
    1,428,326.91x = 2,679,433,181,905.16
  5. Step 5: Solve for x
    x = 2,679,433,181,905.16/1,428,326.91
  6. Step 6: Final answer
    x = 1,875,924.32

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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.