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Finding the Fourth Proportional to 623,676.30, 860,894.49 and 369,026.88

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Solution

The fourth proportional to 623,676.30, 860,894.49 and 369,026.88 is: 509,387.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,676.30 : 860,894.49 = 369,026.88 : x
  2. Step 2: Convert to fraction form
    623,676.30/860,894.49 = 369,026.88/x
  3. Step 3: Cross multiply
    623,676.30x = 860,894.49 × 369,026.88
  4. Step 4: Simplify right side
    623,676.30x = 317,693,207,653.89
  5. Step 5: Solve for x
    x = 317,693,207,653.89/623,676.30
  6. Step 6: Final answer
    x = 509,387.98

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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.