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Finding the Fourth Proportional to 554,764.90, 765,573.88 and 300,116.02

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Solution

The fourth proportional to 554,764.90, 765,573.88 and 300,116.02 is: 414,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,764.90 : 765,573.88 = 300,116.02 : x
  2. Step 2: Convert to fraction form
    554,764.90/765,573.88 = 300,116.02/x
  3. Step 3: Cross multiply
    554,764.90x = 765,573.88 × 300,116.02
  4. Step 4: Simplify right side
    554,764.90x = 229,760,985,881.56
  5. Step 5: Solve for x
    x = 229,760,985,881.56/554,764.90
  6. Step 6: Final answer
    x = 414,159.20

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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.