Home / 490,228.24-676,515.28-275,368.40

Finding the Fourth Proportional to 490,228.24, 676,515.28 and 275,368.40

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Solution

The fourth proportional to 490,228.24, 676,515.28 and 275,368.40 is: 380,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,228.24 : 676,515.28 = 275,368.40 : x
  2. Step 2: Convert to fraction form
    490,228.24/676,515.28 = 275,368.40/x
  3. Step 3: Cross multiply
    490,228.24x = 676,515.28 × 275,368.40
  4. Step 4: Simplify right side
    490,228.24x = 186,290,930,229.15
  5. Step 5: Solve for x
    x = 186,290,930,229.15/490,228.24
  6. Step 6: Final answer
    x = 380,008.57

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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.