Home / 500,291.45-690,397.26-270,842.67

Finding the Fourth Proportional to 500,291.45, 690,397.26 and 270,842.67

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Solution

The fourth proportional to 500,291.45, 690,397.26 and 270,842.67 is: 373,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,291.45 : 690,397.26 = 270,842.67 : x
  2. Step 2: Convert to fraction form
    500,291.45/690,397.26 = 270,842.67/x
  3. Step 3: Cross multiply
    500,291.45x = 690,397.26 × 270,842.67
  4. Step 4: Simplify right side
    500,291.45x = 186,989,037,259.08
  5. Step 5: Solve for x
    x = 186,989,037,259.08/500,291.45
  6. Step 6: Final answer
    x = 373,760.21

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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.