Home / 1,428,374.02-1,972,079.53-885,086.34

Finding the Fourth Proportional to 1,428,374.02, 1,972,079.53 and 885,086.34

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Solution

The fourth proportional to 1,428,374.02, 1,972,079.53 and 885,086.34 is: 1,221,991.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,374.02 : 1,972,079.53 = 885,086.34 : x
  2. Step 2: Convert to fraction form
    1,428,374.02/1,972,079.53 = 885,086.34/x
  3. Step 3: Cross multiply
    1,428,374.02x = 1,972,079.53 × 885,086.34
  4. Step 4: Simplify right side
    1,428,374.02x = 1,745,460,653,396.62
  5. Step 5: Solve for x
    x = 1,745,460,653,396.62/1,428,374.02
  6. Step 6: Final answer
    x = 1,221,991.32

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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.