Home / 710,455.18-1,066,103.08-261,491.38

Finding the Fourth Proportional to 710,455.18, 1,066,103.08 and 261,491.38

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Solution

The fourth proportional to 710,455.18, 1,066,103.08 and 261,491.38 is: 392,391.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,455.18 : 1,066,103.08 = 261,491.38 : x
  2. Step 2: Convert to fraction form
    710,455.18/1,066,103.08 = 261,491.38/x
  3. Step 3: Cross multiply
    710,455.18x = 1,066,103.08 × 261,491.38
  4. Step 4: Simplify right side
    710,455.18x = 278,776,765,611.45
  5. Step 5: Solve for x
    x = 278,776,765,611.45/710,455.18
  6. Step 6: Final answer
    x = 392,391.77

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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.