Home / 690,889.60-1,036,645.43-374,872.96

Finding the Fourth Proportional to 690,889.60, 1,036,645.43 and 374,872.96

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Solution

The fourth proportional to 690,889.60, 1,036,645.43 and 374,872.96 is: 562,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,889.60 : 1,036,645.43 = 374,872.96 : x
  2. Step 2: Convert to fraction form
    690,889.60/1,036,645.43 = 374,872.96/x
  3. Step 3: Cross multiply
    690,889.60x = 1,036,645.43 × 374,872.96
  4. Step 4: Simplify right side
    690,889.60x = 388,610,340,814.57
  5. Step 5: Solve for x
    x = 388,610,340,814.57/690,889.60
  6. Step 6: Final answer
    x = 562,478.20

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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.