Home / 783,459.27-1,080,775.80-511,686.36

Finding the Fourth Proportional to 783,459.27, 1,080,775.80 and 511,686.36

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Solution

The fourth proportional to 783,459.27, 1,080,775.80 and 511,686.36 is: 705,867.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,459.27 : 1,080,775.80 = 511,686.36 : x
  2. Step 2: Convert to fraction form
    783,459.27/1,080,775.80 = 511,686.36/x
  3. Step 3: Cross multiply
    783,459.27x = 1,080,775.80 × 511,686.36
  4. Step 4: Simplify right side
    783,459.27x = 553,018,235,078.09
  5. Step 5: Solve for x
    x = 553,018,235,078.09/783,459.27
  6. Step 6: Final answer
    x = 705,867.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.