Home / 1,134,119.20-1,698,554.40-777,200.80

Finding the Fourth Proportional to 1,134,119.20, 1,698,554.40 and 777,200.80

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Solution

The fourth proportional to 1,134,119.20, 1,698,554.40 and 777,200.80 is: 1,164,002.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134,119.20 : 1,698,554.40 = 777,200.80 : x
  2. Step 2: Convert to fraction form
    1,134,119.20/1,698,554.40 = 777,200.80/x
  3. Step 3: Cross multiply
    1,134,119.20x = 1,698,554.40 × 777,200.80
  4. Step 4: Simplify right side
    1,134,119.20x = 1,320,117,838,523.52
  5. Step 5: Solve for x
    x = 1,320,117,838,523.52/1,134,119.20
  6. Step 6: Final answer
    x = 1,164,002.72

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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.