Home / 775,978.44-1,070,943.46-470,045.84

Finding the Fourth Proportional to 775,978.44, 1,070,943.46 and 470,045.84

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Solution

The fourth proportional to 775,978.44, 1,070,943.46 and 470,045.84 is: 648,719.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,978.44 : 1,070,943.46 = 470,045.84 : x
  2. Step 2: Convert to fraction form
    775,978.44/1,070,943.46 = 470,045.84/x
  3. Step 3: Cross multiply
    775,978.44x = 1,070,943.46 × 470,045.84
  4. Step 4: Simplify right side
    775,978.44x = 503,392,517,497.08
  5. Step 5: Solve for x
    x = 503,392,517,497.08/775,978.44
  6. Step 6: Final answer
    x = 648,719.72

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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.