Home / 1,587,284.48-2,380,913.76-640,640.72

Finding the Fourth Proportional to 1,587,284.48, 2,380,913.76 and 640,640.72

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Solution

The fourth proportional to 1,587,284.48, 2,380,913.76 and 640,640.72 is: 960,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,284.48 : 2,380,913.76 = 640,640.72 : x
  2. Step 2: Convert to fraction form
    1,587,284.48/2,380,913.76 = 640,640.72/x
  3. Step 3: Cross multiply
    1,587,284.48x = 2,380,913.76 × 640,640.72
  4. Step 4: Simplify right side
    1,587,284.48x = 1,525,310,305,464.31
  5. Step 5: Solve for x
    x = 1,525,310,305,464.31/1,587,284.48
  6. Step 6: Final answer
    x = 960,955.85

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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.