Home / 641,579.32-961,931.58-325,426.60

Finding the Fourth Proportional to 641,579.32, 961,931.58 and 325,426.60

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Solution

The fourth proportional to 641,579.32, 961,931.58 and 325,426.60 is: 487,918.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,579.32 : 961,931.58 = 325,426.60 : x
  2. Step 2: Convert to fraction form
    641,579.32/961,931.58 = 325,426.60/x
  3. Step 3: Cross multiply
    641,579.32x = 961,931.58 × 325,426.60
  4. Step 4: Simplify right side
    641,579.32x = 313,038,123,512.03
  5. Step 5: Solve for x
    x = 313,038,123,512.03/641,579.32
  6. Step 6: Final answer
    x = 487,918.04

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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.