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Finding the Fourth Proportional to 587,408.80, 880,076.40 and 481,655.20

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Solution

The fourth proportional to 587,408.80, 880,076.40 and 481,655.20 is: 721,632.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,408.80 : 880,076.40 = 481,655.20 : x
  2. Step 2: Convert to fraction form
    587,408.80/880,076.40 = 481,655.20/x
  3. Step 3: Cross multiply
    587,408.80x = 880,076.40 × 481,655.20
  4. Step 4: Simplify right side
    587,408.80x = 423,893,374,457.28
  5. Step 5: Solve for x
    x = 423,893,374,457.28/587,408.80
  6. Step 6: Final answer
    x = 721,632.66

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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.