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Finding the Fourth Proportional to 894,530, 1,234,451.40 and 492,113.36

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Solution

The fourth proportional to 894,530, 1,234,451.40 and 492,113.36 is: 679,116.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,530 : 1,234,451.40 = 492,113.36 : x
  2. Step 2: Convert to fraction form
    894,530/1,234,451.40 = 492,113.36/x
  3. Step 3: Cross multiply
    894,530x = 1,234,451.40 × 492,113.36
  4. Step 4: Simplify right side
    894,530x = 607,490,026,210.70
  5. Step 5: Solve for x
    x = 607,490,026,210.70/894,530
  6. Step 6: Final answer
    x = 679,116.44

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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.