Home / 1,780,645.41-2,670,944.90-432,804.20

Finding the Fourth Proportional to 1,780,645.41, 2,670,944.90 and 432,804.20

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Solution

The fourth proportional to 1,780,645.41, 2,670,944.90 and 432,804.20 is: 649,200.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,645.41 : 2,670,944.90 = 432,804.20 : x
  2. Step 2: Convert to fraction form
    1,780,645.41/2,670,944.90 = 432,804.20/x
  3. Step 3: Cross multiply
    1,780,645.41x = 2,670,944.90 × 432,804.20
  4. Step 4: Simplify right side
    1,780,645.41x = 1,155,996,155,169.83
  5. Step 5: Solve for x
    x = 1,155,996,155,169.83/1,780,645.41
  6. Step 6: Final answer
    x = 649,200.65

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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.