Home / 1,640,478.40-2,460,717.60-920,080.60

Finding the Fourth Proportional to 1,640,478.40, 2,460,717.60 and 920,080.60

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Solution

The fourth proportional to 1,640,478.40, 2,460,717.60 and 920,080.60 is: 1,380,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,478.40 : 2,460,717.60 = 920,080.60 : x
  2. Step 2: Convert to fraction form
    1,640,478.40/2,460,717.60 = 920,080.60/x
  3. Step 3: Cross multiply
    1,640,478.40x = 2,460,717.60 × 920,080.60
  4. Step 4: Simplify right side
    1,640,478.40x = 2,264,058,525,838.56
  5. Step 5: Solve for x
    x = 2,264,058,525,838.56/1,640,478.40
  6. Step 6: Final answer
    x = 1,380,120.90

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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.