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Finding the Fourth Proportional to 461,308.95, 636,040.80 and 379,350.81

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Solution

The fourth proportional to 461,308.95, 636,040.80 and 379,350.81 is: 523,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,308.95 : 636,040.80 = 379,350.81 : x
  2. Step 2: Convert to fraction form
    461,308.95/636,040.80 = 379,350.81/x
  3. Step 3: Cross multiply
    461,308.95x = 636,040.80 × 379,350.81
  4. Step 4: Simplify right side
    461,308.95x = 241,282,592,673.05
  5. Step 5: Solve for x
    x = 241,282,592,673.05/461,308.95
  6. Step 6: Final answer
    x = 523,039.05

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1.5x scale

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.