Home / 1,640,346.90-2,460,520.35-919,949.10

Finding the Fourth Proportional to 1,640,346.90, 2,460,520.35 and 919,949.10

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Solution

The fourth proportional to 1,640,346.90, 2,460,520.35 and 919,949.10 is: 1,379,923.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,346.90 : 2,460,520.35 = 919,949.10 : x
  2. Step 2: Convert to fraction form
    1,640,346.90/2,460,520.35 = 919,949.10/x
  3. Step 3: Cross multiply
    1,640,346.90x = 2,460,520.35 × 919,949.10
  4. Step 4: Simplify right side
    1,640,346.90x = 2,263,553,481,514.19
  5. Step 5: Solve for x
    x = 2,263,553,481,514.19/1,640,346.90
  6. Step 6: Final answer
    x = 1,379,923.65

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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.