Home / 710,824.10-1,065,861.75-261,428.90

Finding the Fourth Proportional to 710,824.10, 1,065,861.75 and 261,428.90

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Solution

The fourth proportional to 710,824.10, 1,065,861.75 and 261,428.90 is: 392,005.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,824.10 : 1,065,861.75 = 261,428.90 : x
  2. Step 2: Convert to fraction form
    710,824.10/1,065,861.75 = 261,428.90/x
  3. Step 3: Cross multiply
    710,824.10x = 1,065,861.75 × 261,428.90
  4. Step 4: Simplify right side
    710,824.10x = 278,647,064,854.58
  5. Step 5: Solve for x
    x = 278,647,064,854.58/710,824.10
  6. Step 6: Final answer
    x = 392,005.65

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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.