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Finding the Fourth Proportional to 889,693.93, 1,334,264.78 and 321,001.10

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Solution

The fourth proportional to 889,693.93, 1,334,264.78 and 321,001.10 is: 481,402.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,693.93 : 1,334,264.78 = 321,001.10 : x
  2. Step 2: Convert to fraction form
    889,693.93/1,334,264.78 = 321,001.10/x
  3. Step 3: Cross multiply
    889,693.93x = 1,334,264.78 × 321,001.10
  4. Step 4: Simplify right side
    889,693.93x = 428,300,464,055.73
  5. Step 5: Solve for x
    x = 428,300,464,055.73/889,693.93
  6. Step 6: Final answer
    x = 481,402.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.