Home / 500,068.45-690,089.07-270,620.66

Finding the Fourth Proportional to 500,068.45, 690,089.07 and 270,620.66

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Solution

The fourth proportional to 500,068.45, 690,089.07 and 270,620.66 is: 373,453.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,068.45 : 690,089.07 = 270,620.66 : x
  2. Step 2: Convert to fraction form
    500,068.45/690,089.07 = 270,620.66/x
  3. Step 3: Cross multiply
    500,068.45x = 690,089.07 × 270,620.66
  4. Step 4: Simplify right side
    500,068.45x = 186,752,359,734.40
  5. Step 5: Solve for x
    x = 186,752,359,734.40/500,068.45
  6. Step 6: Final answer
    x = 373,453.60

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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.