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Finding the Fourth Proportional to 623,366.88, 860,246.49 and 355,094.88

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Solution

The fourth proportional to 623,366.88, 860,246.49 and 355,094.88 is: 490,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,366.88 : 860,246.49 = 355,094.88 : x
  2. Step 2: Convert to fraction form
    623,366.88/860,246.49 = 355,094.88/x
  3. Step 3: Cross multiply
    623,366.88x = 860,246.49 × 355,094.88
  4. Step 4: Simplify right side
    623,366.88x = 305,469,124,136.97
  5. Step 5: Solve for x
    x = 305,469,124,136.97/623,366.88
  6. Step 6: Final answer
    x = 490,031.05

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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.