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Finding the Fourth Proportional to 657,051.20, 985,576.80 and 444,474.80

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Solution

The fourth proportional to 657,051.20, 985,576.80 and 444,474.80 is: 666,712.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,051.20 : 985,576.80 = 444,474.80 : x
  2. Step 2: Convert to fraction form
    657,051.20/985,576.80 = 444,474.80/x
  3. Step 3: Cross multiply
    657,051.20x = 985,576.80 × 444,474.80
  4. Step 4: Simplify right side
    657,051.20x = 438,064,051,064.64
  5. Step 5: Solve for x
    x = 438,064,051,064.64/657,051.20
  6. Step 6: Final answer
    x = 666,712.20

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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.