Home / 993,945.60-1,491,112.80-425,325.60

Finding the Fourth Proportional to 993,945.60, 1,491,112.80 and 425,325.60

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Solution

The fourth proportional to 993,945.60, 1,491,112.80 and 425,325.60 is: 638,071.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,945.60 : 1,491,112.80 = 425,325.60 : x
  2. Step 2: Convert to fraction form
    993,945.60/1,491,112.80 = 425,325.60/x
  3. Step 3: Cross multiply
    993,945.60x = 1,491,112.80 × 425,325.60
  4. Step 4: Simplify right side
    993,945.60x = 634,208,446,327.68
  5. Step 5: Solve for x
    x = 634,208,446,327.68/993,945.60
  6. Step 6: Final answer
    x = 638,071.59

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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.