Home / 1,386,019.85-2,079,029.78-854,141.45

Finding the Fourth Proportional to 1,386,019.85, 2,079,029.78 and 854,141.45

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Solution

The fourth proportional to 1,386,019.85, 2,079,029.78 and 854,141.45 is: 1,281,212.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,019.85 : 2,079,029.78 = 854,141.45 : x
  2. Step 2: Convert to fraction form
    1,386,019.85/2,079,029.78 = 854,141.45/x
  3. Step 3: Cross multiply
    1,386,019.85x = 2,079,029.78 × 854,141.45
  4. Step 4: Simplify right side
    1,386,019.85x = 1,775,785,506,611.67
  5. Step 5: Solve for x
    x = 1,775,785,506,611.67/1,386,019.85
  6. Step 6: Final answer
    x = 1,281,212.18

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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.