Home / 672,360.40-1,009,091.40-667,111.60

Finding the Fourth Proportional to 672,360.40, 1,009,091.40 and 667,111.60

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Solution

The fourth proportional to 672,360.40, 1,009,091.40 and 667,111.60 is: 1,001,213.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,360.40 : 1,009,091.40 = 667,111.60 : x
  2. Step 2: Convert to fraction form
    672,360.40/1,009,091.40 = 667,111.60/x
  3. Step 3: Cross multiply
    672,360.40x = 1,009,091.40 × 667,111.60
  4. Step 4: Simplify right side
    672,360.40x = 673,176,578,400.24
  5. Step 5: Solve for x
    x = 673,176,578,400.24/672,360.40
  6. Step 6: Final answer
    x = 1,001,213.90

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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.