Home / 1,069,195.74-1,475,489.61-639,475.86

Finding the Fourth Proportional to 1,069,195.74, 1,475,489.61 and 639,475.86

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Solution

The fourth proportional to 1,069,195.74, 1,475,489.61 and 639,475.86 is: 882,476.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,195.74 : 1,475,489.61 = 639,475.86 : x
  2. Step 2: Convert to fraction form
    1,069,195.74/1,475,489.61 = 639,475.86/x
  3. Step 3: Cross multiply
    1,069,195.74x = 1,475,489.61 × 639,475.86
  4. Step 4: Simplify right side
    1,069,195.74x = 943,539,987,275.82
  5. Step 5: Solve for x
    x = 943,539,987,275.82/1,069,195.74
  6. Step 6: Final answer
    x = 882,476.38

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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.