Home / 490,561.02-676,855.98-286,496.10

Finding the Fourth Proportional to 490,561.02, 676,855.98 and 286,496.10

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Solution

The fourth proportional to 490,561.02, 676,855.98 and 286,496.10 is: 395,295.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,561.02 : 676,855.98 = 286,496.10 : x
  2. Step 2: Convert to fraction form
    490,561.02/676,855.98 = 286,496.10/x
  3. Step 3: Cross multiply
    490,561.02x = 676,855.98 × 286,496.10
  4. Step 4: Simplify right side
    490,561.02x = 193,916,598,531.68
  5. Step 5: Solve for x
    x = 193,916,598,531.68/490,561.02
  6. Step 6: Final answer
    x = 395,295.57

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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.