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Finding the Fourth Proportional to 500,068, 690,088.56 and 270,620.32

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Solution

The fourth proportional to 500,068, 690,088.56 and 270,620.32 is: 373,453.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,068 : 690,088.56 = 270,620.32 : x
  2. Step 2: Convert to fraction form
    500,068/690,088.56 = 270,620.32/x
  3. Step 3: Cross multiply
    500,068x = 690,088.56 × 270,620.32
  4. Step 4: Simplify right side
    500,068x = 186,751,986,935.54
  5. Step 5: Solve for x
    x = 186,751,986,935.54/500,068
  6. Step 6: Final answer
    x = 373,453.18

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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.