Home / 490,256.30-676,480.02-275,355.20

Finding the Fourth Proportional to 490,256.30, 676,480.02 and 275,355.20

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Solution

The fourth proportional to 490,256.30, 676,480.02 and 275,355.20 is: 379,948.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,256.30 : 676,480.02 = 275,355.20 : x
  2. Step 2: Convert to fraction form
    490,256.30/676,480.02 = 275,355.20/x
  3. Step 3: Cross multiply
    490,256.30x = 676,480.02 × 275,355.20
  4. Step 4: Simplify right side
    490,256.30x = 186,272,291,203.10
  5. Step 5: Solve for x
    x = 186,272,291,203.10/490,256.30
  6. Step 6: Final answer
    x = 379,948.80

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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.