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Finding the Fourth Proportional to 554,570.75, 765,303.27 and 299,921.93

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Solution

The fourth proportional to 554,570.75, 765,303.27 and 299,921.93 is: 413,889.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,570.75 : 765,303.27 = 299,921.93 : x
  2. Step 2: Convert to fraction form
    554,570.75/765,303.27 = 299,921.93/x
  3. Step 3: Cross multiply
    554,570.75x = 765,303.27 × 299,921.93
  4. Step 4: Simplify right side
    554,570.75x = 229,531,229,947.20
  5. Step 5: Solve for x
    x = 229,531,229,947.20/554,570.75
  6. Step 6: Final answer
    x = 413,889.90

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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.