Home / 815,576.77-1,125,905.02-509,823.23

Finding the Fourth Proportional to 815,576.77, 1,125,905.02 and 509,823.23

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Solution

The fourth proportional to 815,576.77, 1,125,905.02 and 509,823.23 is: 703,811.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,576.77 : 1,125,905.02 = 509,823.23 : x
  2. Step 2: Convert to fraction form
    815,576.77/1,125,905.02 = 509,823.23/x
  3. Step 3: Cross multiply
    815,576.77x = 1,125,905.02 × 509,823.23
  4. Step 4: Simplify right side
    815,576.77x = 574,012,533,969.62
  5. Step 5: Solve for x
    x = 574,012,533,969.62/815,576.77
  6. Step 6: Final answer
    x = 703,811.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.