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Finding the Fourth Proportional to 889,407.76, 1,227,373.89 and 481,498.81

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Solution

The fourth proportional to 889,407.76, 1,227,373.89 and 481,498.81 is: 664,463.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,407.76 : 1,227,373.89 = 481,498.81 : x
  2. Step 2: Convert to fraction form
    889,407.76/1,227,373.89 = 481,498.81/x
  3. Step 3: Cross multiply
    889,407.76x = 1,227,373.89 × 481,498.81
  4. Step 4: Simplify right side
    889,407.76x = 590,979,067,460.07
  5. Step 5: Solve for x
    x = 590,979,067,460.07/889,407.76
  6. Step 6: Final answer
    x = 664,463.58

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1.5x scale

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.