Home / 1,345,230.86-2,017,853.58-398,609.78

Finding the Fourth Proportional to 1,345,230.86, 2,017,853.58 and 398,609.78

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Solution

The fourth proportional to 1,345,230.86, 2,017,853.58 and 398,609.78 is: 597,916.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,230.86 : 2,017,853.58 = 398,609.78 : x
  2. Step 2: Convert to fraction form
    1,345,230.86/2,017,853.58 = 398,609.78/x
  3. Step 3: Cross multiply
    1,345,230.86x = 2,017,853.58 × 398,609.78
  4. Step 4: Simplify right side
    1,345,230.86x = 804,336,161,506.75
  5. Step 5: Solve for x
    x = 804,336,161,506.75/1,345,230.86
  6. Step 6: Final answer
    x = 597,916.82

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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.