Home / 667,260.16-1,000,920.18-218,008.40

Finding the Fourth Proportional to 667,260.16, 1,000,920.18 and 218,008.40

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Solution

The fourth proportional to 667,260.16, 1,000,920.18 and 218,008.40 is: 327,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,260.16 : 1,000,920.18 = 218,008.40 : x
  2. Step 2: Convert to fraction form
    667,260.16/1,000,920.18 = 218,008.40/x
  3. Step 3: Cross multiply
    667,260.16x = 1,000,920.18 × 218,008.40
  4. Step 4: Simplify right side
    667,260.16x = 218,209,006,969.51
  5. Step 5: Solve for x
    x = 218,209,006,969.51/667,260.16
  6. Step 6: Final answer
    x = 327,022.38

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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.