Home / 1,008,021.20-1,512,031.80-927,539.60

Finding the Fourth Proportional to 1,008,021.20, 1,512,031.80 and 927,539.60

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Solution

The fourth proportional to 1,008,021.20, 1,512,031.80 and 927,539.60 is: 1,391,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,021.20 : 1,512,031.80 = 927,539.60 : x
  2. Step 2: Convert to fraction form
    1,008,021.20/1,512,031.80 = 927,539.60/x
  3. Step 3: Cross multiply
    1,008,021.20x = 1,512,031.80 × 927,539.60
  4. Step 4: Simplify right side
    1,008,021.20x = 1,402,469,370,959.28
  5. Step 5: Solve for x
    x = 1,402,469,370,959.28/1,008,021.20
  6. Step 6: Final answer
    x = 1,391,309.40

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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.