Home / 824,999.60-1,237,499.40-638,375.60

Finding the Fourth Proportional to 824,999.60, 1,237,499.40 and 638,375.60

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Solution

The fourth proportional to 824,999.60, 1,237,499.40 and 638,375.60 is: 957,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,999.60 : 1,237,499.40 = 638,375.60 : x
  2. Step 2: Convert to fraction form
    824,999.60/1,237,499.40 = 638,375.60/x
  3. Step 3: Cross multiply
    824,999.60x = 1,237,499.40 × 638,375.60
  4. Step 4: Simplify right side
    824,999.60x = 789,989,421,974.64
  5. Step 5: Solve for x
    x = 789,989,421,974.64/824,999.60
  6. Step 6: Final answer
    x = 957,563.40

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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.