Home / 1,267,072.60-1,900,628.34-425,631.64

Finding the Fourth Proportional to 1,267,072.60, 1,900,628.34 and 425,631.64

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Solution

The fourth proportional to 1,267,072.60, 1,900,628.34 and 425,631.64 is: 638,453.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,072.60 : 1,900,628.34 = 425,631.64 : x
  2. Step 2: Convert to fraction form
    1,267,072.60/1,900,628.34 = 425,631.64/x
  3. Step 3: Cross multiply
    1,267,072.60x = 1,900,628.34 × 425,631.64
  4. Step 4: Simplify right side
    1,267,072.60x = 808,967,557,384.68
  5. Step 5: Solve for x
    x = 808,967,557,384.68/1,267,072.60
  6. Step 6: Final answer
    x = 638,453.99

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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.