Home / 811,955.55-1,217,933.33-768,409.95

Finding the Fourth Proportional to 811,955.55, 1,217,933.33 and 768,409.95

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Solution

The fourth proportional to 811,955.55, 1,217,933.33 and 768,409.95 is: 1,152,614.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,955.55 : 1,217,933.33 = 768,409.95 : x
  2. Step 2: Convert to fraction form
    811,955.55/1,217,933.33 = 768,409.95/x
  3. Step 3: Cross multiply
    811,955.55x = 1,217,933.33 × 768,409.95
  4. Step 4: Simplify right side
    811,955.55x = 935,872,085,366.58
  5. Step 5: Solve for x
    x = 935,872,085,366.58/811,955.55
  6. Step 6: Final answer
    x = 1,152,614.93

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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.