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Finding the Fourth Proportional to 675,776.70, 932,676.54 and 385,388.88

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Solution

The fourth proportional to 675,776.70, 932,676.54 and 385,388.88 is: 531,896.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,776.70 : 932,676.54 = 385,388.88 : x
  2. Step 2: Convert to fraction form
    675,776.70/932,676.54 = 385,388.88/x
  3. Step 3: Cross multiply
    675,776.70x = 932,676.54 × 385,388.88
  4. Step 4: Simplify right side
    675,776.70x = 359,443,167,152.88
  5. Step 5: Solve for x
    x = 359,443,167,152.88/675,776.70
  6. Step 6: Final answer
    x = 531,896.36

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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.