Home / 880,047.40-1,319,196.30-405,905.80

Finding the Fourth Proportional to 880,047.40, 1,319,196.30 and 405,905.80

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Solution

The fourth proportional to 880,047.40, 1,319,196.30 and 405,905.80 is: 608,455.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,047.40 : 1,319,196.30 = 405,905.80 : x
  2. Step 2: Convert to fraction form
    880,047.40/1,319,196.30 = 405,905.80/x
  3. Step 3: Cross multiply
    880,047.40x = 1,319,196.30 × 405,905.80
  4. Step 4: Simplify right side
    880,047.40x = 535,469,429,508.54
  5. Step 5: Solve for x
    x = 535,469,429,508.54/880,047.40
  6. Step 6: Final answer
    x = 608,455.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.