Home / 877,940.40-1,316,910.60-213,092.40

Finding the Fourth Proportional to 877,940.40, 1,316,910.60 and 213,092.40

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Solution

The fourth proportional to 877,940.40, 1,316,910.60 and 213,092.40 is: 319,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,940.40 : 1,316,910.60 = 213,092.40 : x
  2. Step 2: Convert to fraction form
    877,940.40/1,316,910.60 = 213,092.40/x
  3. Step 3: Cross multiply
    877,940.40x = 1,316,910.60 × 213,092.40
  4. Step 4: Simplify right side
    877,940.40x = 280,623,640,339.44
  5. Step 5: Solve for x
    x = 280,623,640,339.44/877,940.40
  6. Step 6: Final answer
    x = 319,638.60

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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.