Home / 1,288,208.80-1,932,313.20-910,295.20

Finding the Fourth Proportional to 1,288,208.80, 1,932,313.20 and 910,295.20

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Solution

The fourth proportional to 1,288,208.80, 1,932,313.20 and 910,295.20 is: 1,365,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,208.80 : 1,932,313.20 = 910,295.20 : x
  2. Step 2: Convert to fraction form
    1,288,208.80/1,932,313.20 = 910,295.20/x
  3. Step 3: Cross multiply
    1,288,208.80x = 1,932,313.20 × 910,295.20
  4. Step 4: Simplify right side
    1,288,208.80x = 1,758,975,430,856.64
  5. Step 5: Solve for x
    x = 1,758,975,430,856.64/1,288,208.80
  6. Step 6: Final answer
    x = 1,365,442.80

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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.