Home / 815,667.48-1,126,030.12-509,913.80

Finding the Fourth Proportional to 815,667.48, 1,126,030.12 and 509,913.80

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Solution

The fourth proportional to 815,667.48, 1,126,030.12 and 509,913.80 is: 703,936.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,667.48 : 1,126,030.12 = 509,913.80 : x
  2. Step 2: Convert to fraction form
    815,667.48/1,126,030.12 = 509,913.80/x
  3. Step 3: Cross multiply
    815,667.48x = 1,126,030.12 × 509,913.80
  4. Step 4: Simplify right side
    815,667.48x = 574,178,297,403.66
  5. Step 5: Solve for x
    x = 574,178,297,403.66/815,667.48
  6. Step 6: Final answer
    x = 703,936.73

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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.