Home / 490,272.28-676,539.40-275,448.16

Finding the Fourth Proportional to 490,272.28, 676,539.40 and 275,448.16

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Solution

The fourth proportional to 490,272.28, 676,539.40 and 275,448.16 is: 380,098.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,272.28 : 676,539.40 = 275,448.16 : x
  2. Step 2: Convert to fraction form
    490,272.28/676,539.40 = 275,448.16/x
  3. Step 3: Cross multiply
    490,272.28x = 676,539.40 × 275,448.16
  4. Step 4: Simplify right side
    490,272.28x = 186,351,532,897.50
  5. Step 5: Solve for x
    x = 186,351,532,897.50/490,272.28
  6. Step 6: Final answer
    x = 380,098.04

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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.