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Finding the Fourth Proportional to 889,492.12, 1,227,497.48 and 481,593.90

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Solution

The fourth proportional to 889,492.12, 1,227,497.48 and 481,593.90 is: 664,598.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,492.12 : 1,227,497.48 = 481,593.90 : x
  2. Step 2: Convert to fraction form
    889,492.12/1,227,497.48 = 481,593.90/x
  3. Step 3: Cross multiply
    889,492.12x = 1,227,497.48 × 481,593.90
  4. Step 4: Simplify right side
    889,492.12x = 591,155,298,633.37
  5. Step 5: Solve for x
    x = 591,155,298,633.37/889,492.12
  6. Step 6: Final answer
    x = 664,598.69

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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.