Home / 649,584.68-972,476.96-378,885.11

Finding the Fourth Proportional to 649,584.68, 972,476.96 and 378,885.11

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Solution

The fourth proportional to 649,584.68, 972,476.96 and 378,885.11 is: 567,219.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,584.68 : 972,476.96 = 378,885.11 : x
  2. Step 2: Convert to fraction form
    649,584.68/972,476.96 = 378,885.11/x
  3. Step 3: Cross multiply
    649,584.68x = 972,476.96 × 378,885.11
  4. Step 4: Simplify right side
    649,584.68x = 368,457,033,205.26
  5. Step 5: Solve for x
    x = 368,457,033,205.26/649,584.68
  6. Step 6: Final answer
    x = 567,219.41

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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.