Home / 1,640,321.40-2,460,482.10-919,923.60

Finding the Fourth Proportional to 1,640,321.40, 2,460,482.10 and 919,923.60

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Solution

The fourth proportional to 1,640,321.40, 2,460,482.10 and 919,923.60 is: 1,379,885.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,321.40 : 2,460,482.10 = 919,923.60 : x
  2. Step 2: Convert to fraction form
    1,640,321.40/2,460,482.10 = 919,923.60/x
  3. Step 3: Cross multiply
    1,640,321.40x = 2,460,482.10 × 919,923.60
  4. Step 4: Simplify right side
    1,640,321.40x = 2,263,455,551,167.56
  5. Step 5: Solve for x
    x = 2,263,455,551,167.56/1,640,321.40
  6. Step 6: Final answer
    x = 1,379,885.40

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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.