Home / 1,171,000.80-1,615,982.40-634,456.80

Finding the Fourth Proportional to 1,171,000.80, 1,615,982.40 and 634,456.80

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Solution

The fourth proportional to 1,171,000.80, 1,615,982.40 and 634,456.80 is: 875,551.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,000.80 : 1,615,982.40 = 634,456.80 : x
  2. Step 2: Convert to fraction form
    1,171,000.80/1,615,982.40 = 634,456.80/x
  3. Step 3: Cross multiply
    1,171,000.80x = 1,615,982.40 × 634,456.80
  4. Step 4: Simplify right side
    1,171,000.80x = 1,025,271,022,360.32
  5. Step 5: Solve for x
    x = 1,025,271,022,360.32/1,171,000.80
  6. Step 6: Final answer
    x = 875,551.09

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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.