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Finding the Fourth Proportional to 894,848, 1,234,890.45 and 492,440

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Solution

The fourth proportional to 894,848, 1,234,890.45 and 492,440 is: 679,567.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,848 : 1,234,890.45 = 492,440 : x
  2. Step 2: Convert to fraction form
    894,848/1,234,890.45 = 492,440/x
  3. Step 3: Cross multiply
    894,848x = 1,234,890.45 × 492,440
  4. Step 4: Simplify right side
    894,848x = 608,109,450,735.80
  5. Step 5: Solve for x
    x = 608,109,450,735.80/894,848
  6. Step 6: Final answer
    x = 679,567.31

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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.