Home / 1,479,439.10-2,218,502.55-680,965.40

Finding the Fourth Proportional to 1,479,439.10, 2,218,502.55 and 680,965.40

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Solution

The fourth proportional to 1,479,439.10, 2,218,502.55 and 680,965.40 is: 1,021,146.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479,439.10 : 2,218,502.55 = 680,965.40 : x
  2. Step 2: Convert to fraction form
    1,479,439.10/2,218,502.55 = 680,965.40/x
  3. Step 3: Cross multiply
    1,479,439.10x = 2,218,502.55 × 680,965.40
  4. Step 4: Simplify right side
    1,479,439.10x = 1,510,723,476,361.77
  5. Step 5: Solve for x
    x = 1,510,723,476,361.77/1,479,439.10
  6. Step 6: Final answer
    x = 1,021,146.11

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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.