Home / 693,441.36-956,968.02-391,635.36

Finding the Fourth Proportional to 693,441.36, 956,968.02 and 391,635.36

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Solution

The fourth proportional to 693,441.36, 956,968.02 and 391,635.36 is: 540,467.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,441.36 : 956,968.02 = 391,635.36 : x
  2. Step 2: Convert to fraction form
    693,441.36/956,968.02 = 391,635.36/x
  3. Step 3: Cross multiply
    693,441.36x = 956,968.02 × 391,635.36
  4. Step 4: Simplify right side
    693,441.36x = 374,782,515,021.19
  5. Step 5: Solve for x
    x = 374,782,515,021.19/693,441.36
  6. Step 6: Final answer
    x = 540,467.50

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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.