Home / 742,749.66-1,113,436.53-269,307.90

Finding the Fourth Proportional to 742,749.66, 1,113,436.53 and 269,307.90

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Solution

The fourth proportional to 742,749.66, 1,113,436.53 and 269,307.90 is: 403,712.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,749.66 : 1,113,436.53 = 269,307.90 : x
  2. Step 2: Convert to fraction form
    742,749.66/1,113,436.53 = 269,307.90/x
  3. Step 3: Cross multiply
    742,749.66x = 1,113,436.53 × 269,307.90
  4. Step 4: Simplify right side
    742,749.66x = 299,857,253,677.59
  5. Step 5: Solve for x
    x = 299,857,253,677.59/742,749.66
  6. Step 6: Final answer
    x = 403,712.41

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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.