Home / 1,285,255.90-1,926,040.65-945,646.30

Finding the Fourth Proportional to 1,285,255.90, 1,926,040.65 and 945,646.30

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Solution

The fourth proportional to 1,285,255.90, 1,926,040.65 and 945,646.30 is: 1,417,113.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,255.90 : 1,926,040.65 = 945,646.30 : x
  2. Step 2: Convert to fraction form
    1,285,255.90/1,926,040.65 = 945,646.30/x
  3. Step 3: Cross multiply
    1,285,255.90x = 1,926,040.65 × 945,646.30
  4. Step 4: Simplify right side
    1,285,255.90x = 1,821,353,214,322.10
  5. Step 5: Solve for x
    x = 1,821,353,214,322.10/1,285,255.90
  6. Step 6: Final answer
    x = 1,417,113.29

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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.