Home / 649,261.40-973,229.70-438,920.60

Finding the Fourth Proportional to 649,261.40, 973,229.70 and 438,920.60

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Solution

The fourth proportional to 649,261.40, 973,229.70 and 438,920.60 is: 657,933.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,261.40 : 973,229.70 = 438,920.60 : x
  2. Step 2: Convert to fraction form
    649,261.40/973,229.70 = 438,920.60/x
  3. Step 3: Cross multiply
    649,261.40x = 973,229.70 × 438,920.60
  4. Step 4: Simplify right side
    649,261.40x = 427,170,563,861.82
  5. Step 5: Solve for x
    x = 427,170,563,861.82/649,261.40
  6. Step 6: Final answer
    x = 657,933.10

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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.