Home / 1,185,727.20-1,778,821.20-511,807.20

Finding the Fourth Proportional to 1,185,727.20, 1,778,821.20 and 511,807.20

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Solution

The fourth proportional to 1,185,727.20, 1,778,821.20 and 511,807.20 is: 767,810.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,727.20 : 1,778,821.20 = 511,807.20 : x
  2. Step 2: Convert to fraction form
    1,185,727.20/1,778,821.20 = 511,807.20/x
  3. Step 3: Cross multiply
    1,185,727.20x = 1,778,821.20 × 511,807.20
  4. Step 4: Simplify right side
    1,185,727.20x = 910,413,497,672.64
  5. Step 5: Solve for x
    x = 910,413,497,672.64/1,185,727.20
  6. Step 6: Final answer
    x = 767,810.25

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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.