Home / 1,762,760.20-2,644,917.90-815,643.40

Finding the Fourth Proportional to 1,762,760.20, 2,644,917.90 and 815,643.40

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Solution

The fourth proportional to 1,762,760.20, 2,644,917.90 and 815,643.40 is: 1,223,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,762,760.20 : 2,644,917.90 = 815,643.40 : x
  2. Step 2: Convert to fraction form
    1,762,760.20/2,644,917.90 = 815,643.40/x
  3. Step 3: Cross multiply
    1,762,760.20x = 2,644,917.90 × 815,643.40
  4. Step 4: Simplify right side
    1,762,760.20x = 2,157,309,828,676.86
  5. Step 5: Solve for x
    x = 2,157,309,828,676.86/1,762,760.20
  6. Step 6: Final answer
    x = 1,223,824.90

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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.