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Finding the Fourth Proportional to 554,370.64, 765,031.42 and 299,721.84

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Solution

The fourth proportional to 554,370.64, 765,031.42 and 299,721.84 is: 413,616.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,370.64 : 765,031.42 = 299,721.84 : x
  2. Step 2: Convert to fraction form
    554,370.64/765,031.42 = 299,721.84/x
  3. Step 3: Cross multiply
    554,370.64x = 765,031.42 × 299,721.84
  4. Step 4: Simplify right side
    554,370.64x = 229,296,624,860.21
  5. Step 5: Solve for x
    x = 229,296,624,860.21/554,370.64
  6. Step 6: Final answer
    x = 413,616.11

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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.