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Finding the Fourth Proportional to 500,028.80, 690,041.56 and 270,586.06

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Solution

The fourth proportional to 500,028.80, 690,041.56 and 270,586.06 is: 373,409.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,028.80 : 690,041.56 = 270,586.06 : x
  2. Step 2: Convert to fraction form
    500,028.80/690,041.56 = 270,586.06/x
  3. Step 3: Cross multiply
    500,028.80x = 690,041.56 × 270,586.06
  4. Step 4: Simplify right side
    500,028.80x = 186,715,626,956.65
  5. Step 5: Solve for x
    x = 186,715,626,956.65/500,028.80
  6. Step 6: Final answer
    x = 373,409.75

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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.