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Finding the Fourth Proportional to 669,335.16, 923,680.62 and 401,063.16

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Solution

The fourth proportional to 669,335.16, 923,680.62 and 401,063.16 is: 553,466.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,335.16 : 923,680.62 = 401,063.16 : x
  2. Step 2: Convert to fraction form
    669,335.16/923,680.62 = 401,063.16/x
  3. Step 3: Cross multiply
    669,335.16x = 923,680.62 × 401,063.16
  4. Step 4: Simplify right side
    669,335.16x = 370,454,268,287.96
  5. Step 5: Solve for x
    x = 370,454,268,287.96/669,335.16
  6. Step 6: Final answer
    x = 553,466.02

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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.