Home / 490,299.10-676,608.67-275,434.55

Finding the Fourth Proportional to 490,299.10, 676,608.67 and 275,434.55

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Solution

The fourth proportional to 490,299.10, 676,608.67 and 275,434.55 is: 380,097.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,299.10 : 676,608.67 = 275,434.55 : x
  2. Step 2: Convert to fraction form
    490,299.10/676,608.67 = 275,434.55/x
  3. Step 3: Cross multiply
    490,299.10x = 676,608.67 × 275,434.55
  4. Step 4: Simplify right side
    490,299.10x = 186,361,404,547.55
  5. Step 5: Solve for x
    x = 186,361,404,547.55/490,299.10
  6. Step 6: Final answer
    x = 380,097.38

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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.