Home / 1,311,723.32-1,968,706.50-513,565.38

Finding the Fourth Proportional to 1,311,723.32, 1,968,706.50 and 513,565.38

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Solution

The fourth proportional to 1,311,723.32, 1,968,706.50 and 513,565.38 is: 770,787.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,723.32 : 1,968,706.50 = 513,565.38 : x
  2. Step 2: Convert to fraction form
    1,311,723.32/1,968,706.50 = 513,565.38/x
  3. Step 3: Cross multiply
    1,311,723.32x = 1,968,706.50 × 513,565.38
  4. Step 4: Simplify right side
    1,311,723.32x = 1,011,059,501,780.97
  5. Step 5: Solve for x
    x = 1,011,059,501,780.97/1,311,723.32
  6. Step 6: Final answer
    x = 770,787.17

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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.