Home / 551,131.47-826,487.37-326,555.28

Finding the Fourth Proportional to 551,131.47, 826,487.37 and 326,555.28

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Solution

The fourth proportional to 551,131.47, 826,487.37 and 326,555.28 is: 489,708.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,131.47 : 826,487.37 = 326,555.28 : x
  2. Step 2: Convert to fraction form
    551,131.47/826,487.37 = 326,555.28/x
  3. Step 3: Cross multiply
    551,131.47x = 826,487.37 × 326,555.28
  4. Step 4: Simplify right side
    551,131.47x = 269,893,814,526.81
  5. Step 5: Solve for x
    x = 269,893,814,526.81/551,131.47
  6. Step 6: Final answer
    x = 489,708.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.