Home / 493,290.20-680,740.10-266,935.70

Finding the Fourth Proportional to 493,290.20, 680,740.10 and 266,935.70

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Solution

The fourth proportional to 493,290.20, 680,740.10 and 266,935.70 is: 368,371.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,290.20 : 680,740.10 = 266,935.70 : x
  2. Step 2: Convert to fraction form
    493,290.20/680,740.10 = 266,935.70/x
  3. Step 3: Cross multiply
    493,290.20x = 680,740.10 × 266,935.70
  4. Step 4: Simplify right side
    493,290.20x = 181,713,836,479.75
  5. Step 5: Solve for x
    x = 181,713,836,479.75/493,290.20
  6. Step 6: Final answer
    x = 368,371.06

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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.