Home / 672,021.42-1,007,682.13-316,940.10

Finding the Fourth Proportional to 672,021.42, 1,007,682.13 and 316,940.10

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Solution

The fourth proportional to 672,021.42, 1,007,682.13 and 316,940.10 is: 475,245.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,021.42 : 1,007,682.13 = 316,940.10 : x
  2. Step 2: Convert to fraction form
    672,021.42/1,007,682.13 = 316,940.10/x
  3. Step 3: Cross multiply
    672,021.42x = 1,007,682.13 × 316,940.10
  4. Step 4: Simplify right side
    672,021.42x = 319,374,875,050.41
  5. Step 5: Solve for x
    x = 319,374,875,050.41/672,021.42
  6. Step 6: Final answer
    x = 475,245.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.