Home / 1,285,172.33-1,773,608.40-712,200.20

Finding the Fourth Proportional to 1,285,172.33, 1,773,608.40 and 712,200.20

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Solution

The fourth proportional to 1,285,172.33, 1,773,608.40 and 712,200.20 is: 982,875.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,172.33 : 1,773,608.40 = 712,200.20 : x
  2. Step 2: Convert to fraction form
    1,285,172.33/1,773,608.40 = 712,200.20/x
  3. Step 3: Cross multiply
    1,285,172.33x = 1,773,608.40 × 712,200.20
  4. Step 4: Simplify right side
    1,285,172.33x = 1,263,164,248,333.64
  5. Step 5: Solve for x
    x = 1,263,164,248,333.64/1,285,172.33
  6. Step 6: Final answer
    x = 982,875.39

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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.