Home / 1,316,187.76-1,815,415.32-908,453.20

Finding the Fourth Proportional to 1,316,187.76, 1,815,415.32 and 908,453.20

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Solution

The fourth proportional to 1,316,187.76, 1,815,415.32 and 908,453.20 is: 1,253,027.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,187.76 : 1,815,415.32 = 908,453.20 : x
  2. Step 2: Convert to fraction form
    1,316,187.76/1,815,415.32 = 908,453.20/x
  3. Step 3: Cross multiply
    1,316,187.76x = 1,815,415.32 × 908,453.20
  4. Step 4: Simplify right side
    1,316,187.76x = 1,649,219,856,783.02
  5. Step 5: Solve for x
    x = 1,649,219,856,783.02/1,316,187.76
  6. Step 6: Final answer
    x = 1,253,027.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.