Home / 821,503.59-1,139,474.81-799,655.46

Finding the Fourth Proportional to 821,503.59, 1,139,474.81 and 799,655.46

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Solution

The fourth proportional to 821,503.59, 1,139,474.81 and 799,655.46 is: 1,109,170.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,503.59 : 1,139,474.81 = 799,655.46 : x
  2. Step 2: Convert to fraction form
    821,503.59/1,139,474.81 = 799,655.46/x
  3. Step 3: Cross multiply
    821,503.59x = 1,139,474.81 × 799,655.46
  4. Step 4: Simplify right side
    821,503.59x = 911,187,249,350.69
  5. Step 5: Solve for x
    x = 911,187,249,350.69/821,503.59
  6. Step 6: Final answer
    x = 1,109,170.14

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.