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Finding the Fourth Proportional to 554,507.82, 765,217.98 and 299,858.40

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Solution

The fourth proportional to 554,507.82, 765,217.98 and 299,858.40 is: 413,803.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,507.82 : 765,217.98 = 299,858.40 : x
  2. Step 2: Convert to fraction form
    554,507.82/765,217.98 = 299,858.40/x
  3. Step 3: Cross multiply
    554,507.82x = 765,217.98 × 299,858.40
  4. Step 4: Simplify right side
    554,507.82x = 229,457,039,134.03
  5. Step 5: Solve for x
    x = 229,457,039,134.03/554,507.82
  6. Step 6: Final answer
    x = 413,803.07

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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.