Home / 669,849.40-1,003,218.90-654,297.40

Finding the Fourth Proportional to 669,849.40, 1,003,218.90 and 654,297.40

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Solution

The fourth proportional to 669,849.40, 1,003,218.90 and 654,297.40 is: 979,927.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,849.40 : 1,003,218.90 = 654,297.40 : x
  2. Step 2: Convert to fraction form
    669,849.40/1,003,218.90 = 654,297.40/x
  3. Step 3: Cross multiply
    669,849.40x = 1,003,218.90 × 654,297.40
  4. Step 4: Simplify right side
    669,849.40x = 656,403,517,900.86
  5. Step 5: Solve for x
    x = 656,403,517,900.86/669,849.40
  6. Step 6: Final answer
    x = 979,927.01

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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.