Home / 632,211.48-872,451.81-345,731.76

Finding the Fourth Proportional to 632,211.48, 872,451.81 and 345,731.76

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Solution

The fourth proportional to 632,211.48, 872,451.81 and 345,731.76 is: 477,109.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,211.48 : 872,451.81 = 345,731.76 : x
  2. Step 2: Convert to fraction form
    632,211.48/872,451.81 = 345,731.76/x
  3. Step 3: Cross multiply
    632,211.48x = 872,451.81 × 345,731.76
  4. Step 4: Simplify right side
    632,211.48x = 301,634,299,786.49
  5. Step 5: Solve for x
    x = 301,634,299,786.49/632,211.48
  6. Step 6: Final answer
    x = 477,109.81

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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.