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Finding the Fourth Proportional to 500,589.34, 690,622.63 and 370,080.34

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Solution

The fourth proportional to 500,589.34, 690,622.63 and 370,080.34 is: 510,569.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,589.34 : 690,622.63 = 370,080.34 : x
  2. Step 2: Convert to fraction form
    500,589.34/690,622.63 = 370,080.34/x
  3. Step 3: Cross multiply
    500,589.34x = 690,622.63 × 370,080.34
  4. Step 4: Simplify right side
    500,589.34x = 255,585,857,722.09
  5. Step 5: Solve for x
    x = 255,585,857,722.09/500,589.34
  6. Step 6: Final answer
    x = 510,569.92

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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.