Home / 748,719.86-1,123,269.12-208,976.05

Finding the Fourth Proportional to 748,719.86, 1,123,269.12 and 208,976.05

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Solution

The fourth proportional to 748,719.86, 1,123,269.12 and 208,976.05 is: 313,516.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,719.86 : 1,123,269.12 = 208,976.05 : x
  2. Step 2: Convert to fraction form
    748,719.86/1,123,269.12 = 208,976.05/x
  3. Step 3: Cross multiply
    748,719.86x = 1,123,269.12 × 208,976.05
  4. Step 4: Simplify right side
    748,719.86x = 234,736,345,188.66
  5. Step 5: Solve for x
    x = 234,736,345,188.66/748,719.86
  6. Step 6: Final answer
    x = 313,516.92

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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.