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Finding the Fourth Proportional to 580,338.55, 799,549.81 and 449,064.87

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Solution

The fourth proportional to 580,338.55, 799,549.81 and 449,064.87 is: 618,690.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,338.55 : 799,549.81 = 449,064.87 : x
  2. Step 2: Convert to fraction form
    580,338.55/799,549.81 = 449,064.87/x
  3. Step 3: Cross multiply
    580,338.55x = 799,549.81 × 449,064.87
  4. Step 4: Simplify right side
    580,338.55x = 359,049,731,486.18
  5. Step 5: Solve for x
    x = 359,049,731,486.18/580,338.55
  6. Step 6: Final answer
    x = 618,690.13

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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.