Home / 500,272.45-690,372.81-270,828.06

Finding the Fourth Proportional to 500,272.45, 690,372.81 and 270,828.06

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Solution

The fourth proportional to 500,272.45, 690,372.81 and 270,828.06 is: 373,741.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,272.45 : 690,372.81 = 270,828.06 : x
  2. Step 2: Convert to fraction form
    500,272.45/690,372.81 = 270,828.06/x
  3. Step 3: Cross multiply
    500,272.45x = 690,372.81 × 270,828.06
  4. Step 4: Simplify right side
    500,272.45x = 186,972,328,809.05
  5. Step 5: Solve for x
    x = 186,972,328,809.05/500,272.45
  6. Step 6: Final answer
    x = 373,741.01

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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.