Home / 725,090.60-1,087,635.90-425,714.60

Finding the Fourth Proportional to 725,090.60, 1,087,635.90 and 425,714.60

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Solution

The fourth proportional to 725,090.60, 1,087,635.90 and 425,714.60 is: 638,571.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,090.60 : 1,087,635.90 = 425,714.60 : x
  2. Step 2: Convert to fraction form
    725,090.60/1,087,635.90 = 425,714.60/x
  3. Step 3: Cross multiply
    725,090.60x = 1,087,635.90 × 425,714.60
  4. Step 4: Simplify right side
    725,090.60x = 463,022,482,114.14
  5. Step 5: Solve for x
    x = 463,022,482,114.14/725,090.60
  6. Step 6: Final answer
    x = 638,571.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.