Home / 985,372.55-1,477,599.42-511,930.79

Finding the Fourth Proportional to 985,372.55, 1,477,599.42 and 511,930.79

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Solution

The fourth proportional to 985,372.55, 1,477,599.42 and 511,930.79 is: 767,657.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,372.55 : 1,477,599.42 = 511,930.79 : x
  2. Step 2: Convert to fraction form
    985,372.55/1,477,599.42 = 511,930.79/x
  3. Step 3: Cross multiply
    985,372.55x = 1,477,599.42 × 511,930.79
  4. Step 4: Simplify right side
    985,372.55x = 756,428,638,384.14
  5. Step 5: Solve for x
    x = 756,428,638,384.14/985,372.55
  6. Step 6: Final answer
    x = 767,657.51

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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.