Home / 985,378.05-1,477,607.67-511,936.29

Finding the Fourth Proportional to 985,378.05, 1,477,607.67 and 511,936.29

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Solution

The fourth proportional to 985,378.05, 1,477,607.67 and 511,936.29 is: 767,665.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,378.05 : 1,477,607.67 = 511,936.29 : x
  2. Step 2: Convert to fraction form
    985,378.05/1,477,607.67 = 511,936.29/x
  3. Step 3: Cross multiply
    985,378.05x = 1,477,607.67 × 511,936.29
  4. Step 4: Simplify right side
    985,378.05x = 756,440,988,655.34
  5. Step 5: Solve for x
    x = 756,440,988,655.34/985,378.05
  6. Step 6: Final answer
    x = 767,665.76

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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.