Home / 1,382,878.50-2,074,667.67-385,606.50

Finding the Fourth Proportional to 1,382,878.50, 2,074,667.67 and 385,606.50

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Solution

The fourth proportional to 1,382,878.50, 2,074,667.67 and 385,606.50 is: 578,507.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,878.50 : 2,074,667.67 = 385,606.50 : x
  2. Step 2: Convert to fraction form
    1,382,878.50/2,074,667.67 = 385,606.50/x
  3. Step 3: Cross multiply
    1,382,878.50x = 2,074,667.67 × 385,606.50
  4. Step 4: Simplify right side
    1,382,878.50x = 800,005,338,891.86
  5. Step 5: Solve for x
    x = 800,005,338,891.86/1,382,878.50
  6. Step 6: Final answer
    x = 578,507.32

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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.