Home / 1,229,336.20-1,845,501.90-780,056.20

Finding the Fourth Proportional to 1,229,336.20, 1,845,501.90 and 780,056.20

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Solution

The fourth proportional to 1,229,336.20, 1,845,501.90 and 780,056.20 is: 1,171,034.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,336.20 : 1,845,501.90 = 780,056.20 : x
  2. Step 2: Convert to fraction form
    1,229,336.20/1,845,501.90 = 780,056.20/x
  3. Step 3: Cross multiply
    1,229,336.20x = 1,845,501.90 × 780,056.20
  4. Step 4: Simplify right side
    1,229,336.20x = 1,439,595,199,206.78
  5. Step 5: Solve for x
    x = 1,439,595,199,206.78/1,229,336.20
  6. Step 6: Final answer
    x = 1,171,034.58

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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.