Home / 551,105.48-826,729.50-380,009.18

Finding the Fourth Proportional to 551,105.48, 826,729.50 and 380,009.18

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Solution

The fourth proportional to 551,105.48, 826,729.50 and 380,009.18 is: 570,062.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,105.48 : 826,729.50 = 380,009.18 : x
  2. Step 2: Convert to fraction form
    551,105.48/826,729.50 = 380,009.18/x
  3. Step 3: Cross multiply
    551,105.48x = 826,729.50 × 380,009.18
  4. Step 4: Simplify right side
    551,105.48x = 314,164,799,376.81
  5. Step 5: Solve for x
    x = 314,164,799,376.81/551,105.48
  6. Step 6: Final answer
    x = 570,062.92

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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.