Home / 1,230,382.88-1,842,980.16-780,866.72

Finding the Fourth Proportional to 1,230,382.88, 1,842,980.16 and 780,866.72

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Solution

The fourth proportional to 1,230,382.88, 1,842,980.16 and 780,866.72 is: 1,169,653.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,382.88 : 1,842,980.16 = 780,866.72 : x
  2. Step 2: Convert to fraction form
    1,230,382.88/1,842,980.16 = 780,866.72/x
  3. Step 3: Cross multiply
    1,230,382.88x = 1,842,980.16 × 780,866.72
  4. Step 4: Simplify right side
    1,230,382.88x = 1,439,121,872,564.28
  5. Step 5: Solve for x
    x = 1,439,121,872,564.28/1,230,382.88
  6. Step 6: Final answer
    x = 1,169,653.69

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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.