Home / 1,069,196.74-1,475,490.99-639,476.86

Finding the Fourth Proportional to 1,069,196.74, 1,475,490.99 and 639,476.86

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Solution

The fourth proportional to 1,069,196.74, 1,475,490.99 and 639,476.86 is: 882,477.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,196.74 : 1,475,490.99 = 639,476.86 : x
  2. Step 2: Convert to fraction form
    1,069,196.74/1,475,490.99 = 639,476.86/x
  3. Step 3: Cross multiply
    1,069,196.74x = 1,475,490.99 × 639,476.86
  4. Step 4: Simplify right side
    1,069,196.74x = 943,542,345,243.49
  5. Step 5: Solve for x
    x = 943,542,345,243.49/1,069,196.74
  6. Step 6: Final answer
    x = 882,477.76

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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.