Home / 1,288,662.60-1,929,057.30-1,005,227.40

Finding the Fourth Proportional to 1,288,662.60, 1,929,057.30 and 1,005,227.40

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Solution

The fourth proportional to 1,288,662.60, 1,929,057.30 and 1,005,227.40 is: 1,504,770.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,662.60 : 1,929,057.30 = 1,005,227.40 : x
  2. Step 2: Convert to fraction form
    1,288,662.60/1,929,057.30 = 1,005,227.40/x
  3. Step 3: Cross multiply
    1,288,662.60x = 1,929,057.30 × 1,005,227.40
  4. Step 4: Simplify right side
    1,288,662.60x = 1,939,141,254,130.02
  5. Step 5: Solve for x
    x = 1,939,141,254,130.02/1,288,662.60
  6. Step 6: Final answer
    x = 1,504,770.34

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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.