Home / 748,720.86-1,123,270.62-208,977.05

Finding the Fourth Proportional to 748,720.86, 1,123,270.62 and 208,977.05

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Solution

The fourth proportional to 748,720.86, 1,123,270.62 and 208,977.05 is: 313,518.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,720.86 : 1,123,270.62 = 208,977.05 : x
  2. Step 2: Convert to fraction form
    748,720.86/1,123,270.62 = 208,977.05/x
  3. Step 3: Cross multiply
    748,720.86x = 1,123,270.62 × 208,977.05
  4. Step 4: Simplify right side
    748,720.86x = 234,737,780,519.27
  5. Step 5: Solve for x
    x = 234,737,780,519.27/748,720.86
  6. Step 6: Final answer
    x = 313,518.42

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1.5x scale

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.