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Finding the Fourth Proportional to 679,063.88, 936,465.81 and 446,079.49

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Solution

The fourth proportional to 679,063.88, 936,465.81 and 446,079.49 is: 615,167.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,063.88 : 936,465.81 = 446,079.49 : x
  2. Step 2: Convert to fraction form
    679,063.88/936,465.81 = 446,079.49/x
  3. Step 3: Cross multiply
    679,063.88x = 936,465.81 × 446,079.49
  4. Step 4: Simplify right side
    679,063.88x = 417,738,188,586.07
  5. Step 5: Solve for x
    x = 417,738,188,586.07/679,063.88
  6. Step 6: Final answer
    x = 615,167.73

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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.