Home / 1,640,452.80-2,460,679.20-518,865.60

Finding the Fourth Proportional to 1,640,452.80, 2,460,679.20 and 518,865.60

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Solution

The fourth proportional to 1,640,452.80, 2,460,679.20 and 518,865.60 is: 778,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,452.80 : 2,460,679.20 = 518,865.60 : x
  2. Step 2: Convert to fraction form
    1,640,452.80/2,460,679.20 = 518,865.60/x
  3. Step 3: Cross multiply
    1,640,452.80x = 2,460,679.20 × 518,865.60
  4. Step 4: Simplify right side
    1,640,452.80x = 1,276,761,789,515.52
  5. Step 5: Solve for x
    x = 1,276,761,789,515.52/1,640,452.80
  6. Step 6: Final answer
    x = 778,298.40

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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.