Home / 1,069,481.50-1,475,884.47-639,779.74

Finding the Fourth Proportional to 1,069,481.50, 1,475,884.47 and 639,779.74

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Solution

The fourth proportional to 1,069,481.50, 1,475,884.47 and 639,779.74 is: 882,896.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,481.50 : 1,475,884.47 = 639,779.74 : x
  2. Step 2: Convert to fraction form
    1,069,481.50/1,475,884.47 = 639,779.74/x
  3. Step 3: Cross multiply
    1,069,481.50x = 1,475,884.47 × 639,779.74
  4. Step 4: Simplify right side
    1,069,481.50x = 944,240,982,486.64
  5. Step 5: Solve for x
    x = 944,240,982,486.64/1,069,481.50
  6. Step 6: Final answer
    x = 882,896.04

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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.