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Finding the Fourth Proportional to 500,068.31, 690,088.97 and 270,620.62

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Solution

The fourth proportional to 500,068.31, 690,088.97 and 270,620.62 is: 373,453.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,068.31 : 690,088.97 = 270,620.62 : x
  2. Step 2: Convert to fraction form
    500,068.31/690,088.97 = 270,620.62/x
  3. Step 3: Cross multiply
    500,068.31x = 690,088.97 × 270,620.62
  4. Step 4: Simplify right side
    500,068.31x = 186,752,303,867.89
  5. Step 5: Solve for x
    x = 186,752,303,867.89/500,068.31
  6. Step 6: Final answer
    x = 373,453.59

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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.