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Finding the Fourth Proportional to 495,354.34, 683,592.78 and 268,999.84

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Solution

The fourth proportional to 495,354.34, 683,592.78 and 268,999.84 is: 371,221.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,354.34 : 683,592.78 = 268,999.84 : x
  2. Step 2: Convert to fraction form
    495,354.34/683,592.78 = 268,999.84/x
  3. Step 3: Cross multiply
    495,354.34x = 683,592.78 × 268,999.84
  4. Step 4: Simplify right side
    495,354.34x = 183,886,348,445.16
  5. Step 5: Solve for x
    x = 183,886,348,445.16/495,354.34
  6. Step 6: Final answer
    x = 371,221.84

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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.