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Finding the Fourth Proportional to 556,738.56, 768,044.16 and 330,301.44

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Solution

The fourth proportional to 556,738.56, 768,044.16 and 330,301.44 is: 455,664.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,738.56 : 768,044.16 = 330,301.44 : x
  2. Step 2: Convert to fraction form
    556,738.56/768,044.16 = 330,301.44/x
  3. Step 3: Cross multiply
    556,738.56x = 768,044.16 × 330,301.44
  4. Step 4: Simplify right side
    556,738.56x = 253,686,092,031.59
  5. Step 5: Solve for x
    x = 253,686,092,031.59/556,738.56
  6. Step 6: Final answer
    x = 455,664.67

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1.5x scale

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.