Home / 500,421.24-690,597.90-274,079.16

Finding the Fourth Proportional to 500,421.24, 690,597.90 and 274,079.16

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Solution

The fourth proportional to 500,421.24, 690,597.90 and 274,079.16 is: 378,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,421.24 : 690,597.90 = 274,079.16 : x
  2. Step 2: Convert to fraction form
    500,421.24/690,597.90 = 274,079.16/x
  3. Step 3: Cross multiply
    500,421.24x = 690,597.90 × 274,079.16
  4. Step 4: Simplify right side
    500,421.24x = 189,278,492,329.76
  5. Step 5: Solve for x
    x = 189,278,492,329.76/500,421.24
  6. Step 6: Final answer
    x = 378,238.33

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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.