Home / 645,023.43-967,801.65-325,004.25

Finding the Fourth Proportional to 645,023.43, 967,801.65 and 325,004.25

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Solution

The fourth proportional to 645,023.43, 967,801.65 and 325,004.25 is: 487,640.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,023.43 : 967,801.65 = 325,004.25 : x
  2. Step 2: Convert to fraction form
    645,023.43/967,801.65 = 325,004.25/x
  3. Step 3: Cross multiply
    645,023.43x = 967,801.65 × 325,004.25
  4. Step 4: Simplify right side
    645,023.43x = 314,539,649,407.01
  5. Step 5: Solve for x
    x = 314,539,649,407.01/645,023.43
  6. Step 6: Final answer
    x = 487,640.66

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1.5x scale

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.