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Finding the Fourth Proportional to 554,505.64, 765,219.60 and 299,858.64

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Solution

The fourth proportional to 554,505.64, 765,219.60 and 299,858.64 is: 413,805.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,505.64 : 765,219.60 = 299,858.64 : x
  2. Step 2: Convert to fraction form
    554,505.64/765,219.60 = 299,858.64/x
  3. Step 3: Cross multiply
    554,505.64x = 765,219.60 × 299,858.64
  4. Step 4: Simplify right side
    554,505.64x = 229,457,708,557.34
  5. Step 5: Solve for x
    x = 229,457,708,557.34/554,505.64
  6. Step 6: Final answer
    x = 413,805.91

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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.