Home / 742,307.73-1,114,021.37-543,141.96

Finding the Fourth Proportional to 742,307.73, 1,114,021.37 and 543,141.96

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Solution

The fourth proportional to 742,307.73, 1,114,021.37 and 543,141.96 is: 815,122.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,307.73 : 1,114,021.37 = 543,141.96 : x
  2. Step 2: Convert to fraction form
    742,307.73/1,114,021.37 = 543,141.96/x
  3. Step 3: Cross multiply
    742,307.73x = 1,114,021.37 × 543,141.96
  4. Step 4: Simplify right side
    742,307.73x = 605,071,750,383.69
  5. Step 5: Solve for x
    x = 605,071,750,383.69/742,307.73
  6. Step 6: Final answer
    x = 815,122.52

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1.5x scale

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.