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Finding the Fourth Proportional to 579,290.88, 869,405.76 and 298,888.32

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Solution

The fourth proportional to 579,290.88, 869,405.76 and 298,888.32 is: 448,574.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,290.88 : 869,405.76 = 298,888.32 : x
  2. Step 2: Convert to fraction form
    579,290.88/869,405.76 = 298,888.32/x
  3. Step 3: Cross multiply
    579,290.88x = 869,405.76 × 298,888.32
  4. Step 4: Simplify right side
    579,290.88x = 259,855,227,004.72
  5. Step 5: Solve for x
    x = 259,855,227,004.72/579,290.88
  6. Step 6: Final answer
    x = 448,574.69

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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.