Home / 672,021.90-1,008,032.85-388,586.70

Finding the Fourth Proportional to 672,021.90, 1,008,032.85 and 388,586.70

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Solution

The fourth proportional to 672,021.90, 1,008,032.85 and 388,586.70 is: 582,880.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,021.90 : 1,008,032.85 = 388,586.70 : x
  2. Step 2: Convert to fraction form
    672,021.90/1,008,032.85 = 388,586.70/x
  3. Step 3: Cross multiply
    672,021.90x = 1,008,032.85 × 388,586.70
  4. Step 4: Simplify right side
    672,021.90x = 391,708,158,673.10
  5. Step 5: Solve for x
    x = 391,708,158,673.10/672,021.90
  6. Step 6: Final answer
    x = 582,880.05

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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.