Home / 903,926.37-1,247,109.43-516,463.78

Finding the Fourth Proportional to 903,926.37, 1,247,109.43 and 516,463.78

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Solution

The fourth proportional to 903,926.37, 1,247,109.43 and 516,463.78 is: 712,543.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,926.37 : 1,247,109.43 = 516,463.78 : x
  2. Step 2: Convert to fraction form
    903,926.37/1,247,109.43 = 516,463.78/x
  3. Step 3: Cross multiply
    903,926.37x = 1,247,109.43 × 516,463.78
  4. Step 4: Simplify right side
    903,926.37x = 644,086,850,291.45
  5. Step 5: Solve for x
    x = 644,086,850,291.45/903,926.37
  6. Step 6: Final answer
    x = 712,543.49

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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.