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Finding the Fourth Proportional to 609,366.88, 840,826.16 and 382,852

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Solution

The fourth proportional to 609,366.88, 840,826.16 and 382,852 is: 528,272.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,366.88 : 840,826.16 = 382,852 : x
  2. Step 2: Convert to fraction form
    609,366.88/840,826.16 = 382,852/x
  3. Step 3: Cross multiply
    609,366.88x = 840,826.16 × 382,852
  4. Step 4: Simplify right side
    609,366.88x = 321,911,977,008.32
  5. Step 5: Solve for x
    x = 321,911,977,008.32/609,366.88
  6. Step 6: Final answer
    x = 528,272.85

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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.