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Finding the Fourth Proportional to 889,502.72, 1,333,296.86 and 384,302.88

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Solution

The fourth proportional to 889,502.72, 1,333,296.86 and 384,302.88 is: 576,040.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,502.72 : 1,333,296.86 = 384,302.88 : x
  2. Step 2: Convert to fraction form
    889,502.72/1,333,296.86 = 384,302.88/x
  3. Step 3: Cross multiply
    889,502.72x = 1,333,296.86 × 384,302.88
  4. Step 4: Simplify right side
    889,502.72x = 512,389,821,271.44
  5. Step 5: Solve for x
    x = 512,389,821,271.44/889,502.72
  6. Step 6: Final answer
    x = 576,040.76

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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.