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Finding the Fourth Proportional to 418,496.88, 576,729.32 and 303,577.32

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Solution

The fourth proportional to 418,496.88, 576,729.32 and 303,577.32 is: 418,359.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,496.88 : 576,729.32 = 303,577.32 : x
  2. Step 2: Convert to fraction form
    418,496.88/576,729.32 = 303,577.32/x
  3. Step 3: Cross multiply
    418,496.88x = 576,729.32 × 303,577.32
  4. Step 4: Simplify right side
    418,496.88x = 175,081,939,813.14
  5. Step 5: Solve for x
    x = 175,081,939,813.14/418,496.88
  6. Step 6: Final answer
    x = 418,359.01

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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.