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Finding the Fourth Proportional to 554,956.16, 765,844.97 and 300,312.82

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Solution

The fourth proportional to 554,956.16, 765,844.97 and 300,312.82 is: 414,434.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,956.16 : 765,844.97 = 300,312.82 : x
  2. Step 2: Convert to fraction form
    554,956.16/765,844.97 = 300,312.82/x
  3. Step 3: Cross multiply
    554,956.16x = 765,844.97 × 300,312.82
  4. Step 4: Simplify right side
    554,956.16x = 229,993,062,623.52
  5. Step 5: Solve for x
    x = 229,993,062,623.52/554,956.16
  6. Step 6: Final answer
    x = 414,434.65

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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.