Home / 1,690,204.32-2,535,310.80-428,032.08

Finding the Fourth Proportional to 1,690,204.32, 2,535,310.80 and 428,032.08

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Solution

The fourth proportional to 1,690,204.32, 2,535,310.80 and 428,032.08 is: 642,049.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,204.32 : 2,535,310.80 = 428,032.08 : x
  2. Step 2: Convert to fraction form
    1,690,204.32/2,535,310.80 = 428,032.08/x
  3. Step 3: Cross multiply
    1,690,204.32x = 2,535,310.80 × 428,032.08
  4. Step 4: Simplify right side
    1,690,204.32x = 1,085,194,355,170.46
  5. Step 5: Solve for x
    x = 1,085,194,355,170.46/1,690,204.32
  6. Step 6: Final answer
    x = 642,049.21

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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.