Home / 1,429,680.12-1,973,401.44-920,382.50

Finding the Fourth Proportional to 1,429,680.12, 1,973,401.44 and 920,382.50

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Solution

The fourth proportional to 1,429,680.12, 1,973,401.44 and 920,382.50 is: 1,270,412.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,680.12 : 1,973,401.44 = 920,382.50 : x
  2. Step 2: Convert to fraction form
    1,429,680.12/1,973,401.44 = 920,382.50/x
  3. Step 3: Cross multiply
    1,429,680.12x = 1,973,401.44 × 920,382.50
  4. Step 4: Simplify right side
    1,429,680.12x = 1,816,284,150,850.80
  5. Step 5: Solve for x
    x = 1,816,284,150,850.80/1,429,680.12
  6. Step 6: Final answer
    x = 1,270,412.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.