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Finding the Fourth Proportional to 554,952.63, 765,835.31 and 300,303.81

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Solution

The fourth proportional to 554,952.63, 765,835.31 and 300,303.81 is: 414,419.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,952.63 : 765,835.31 = 300,303.81 : x
  2. Step 2: Convert to fraction form
    554,952.63/765,835.31 = 300,303.81/x
  3. Step 3: Cross multiply
    554,952.63x = 765,835.31 × 300,303.81
  4. Step 4: Simplify right side
    554,952.63x = 229,983,261,425.53
  5. Step 5: Solve for x
    x = 229,983,261,425.53/554,952.63
  6. Step 6: Final answer
    x = 414,419.63

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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.