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Finding the Fourth Proportional to 691,308, 954,005.04 and 373,356

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Solution

The fourth proportional to 691,308, 954,005.04 and 373,356 is: 515,231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,308 : 954,005.04 = 373,356 : x
  2. Step 2: Convert to fraction form
    691,308/954,005.04 = 373,356/x
  3. Step 3: Cross multiply
    691,308x = 954,005.04 × 373,356
  4. Step 4: Simplify right side
    691,308x = 356,183,505,714.24
  5. Step 5: Solve for x
    x = 356,183,505,714.24/691,308
  6. Step 6: Final answer
    x = 515,231.28

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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.