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Finding the Fourth Proportional to 612,872.21, 845,790.98 and 510,726.69

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Solution

The fourth proportional to 612,872.21, 845,790.98 and 510,726.69 is: 704,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,872.21 : 845,790.98 = 510,726.69 : x
  2. Step 2: Convert to fraction form
    612,872.21/845,790.98 = 510,726.69/x
  3. Step 3: Cross multiply
    612,872.21x = 845,790.98 × 510,726.69
  4. Step 4: Simplify right side
    612,872.21x = 431,968,025,093.62
  5. Step 5: Solve for x
    x = 431,968,025,093.62/612,872.21
  6. Step 6: Final answer
    x = 704,825.60

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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.