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Finding the Fourth Proportional to 449,511.64, 620,344.96 and 258,525.22

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Solution

The fourth proportional to 449,511.64, 620,344.96 and 258,525.22 is: 356,775.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,511.64 : 620,344.96 = 258,525.22 : x
  2. Step 2: Convert to fraction form
    449,511.64/620,344.96 = 258,525.22/x
  3. Step 3: Cross multiply
    449,511.64x = 620,344.96 × 258,525.22
  4. Step 4: Simplify right side
    449,511.64x = 160,374,817,259.89
  5. Step 5: Solve for x
    x = 160,374,817,259.89/449,511.64
  6. Step 6: Final answer
    x = 356,775.67

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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.