Home / 989,759.73-1,484,343.43-516,186.75

Finding the Fourth Proportional to 989,759.73, 1,484,343.43 and 516,186.75

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Solution

The fourth proportional to 989,759.73, 1,484,343.43 and 516,186.75 is: 774,125.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,759.73 : 1,484,343.43 = 516,186.75 : x
  2. Step 2: Convert to fraction form
    989,759.73/1,484,343.43 = 516,186.75/x
  3. Step 3: Cross multiply
    989,759.73x = 1,484,343.43 × 516,186.75
  4. Step 4: Simplify right side
    989,759.73x = 766,198,411,015.55
  5. Step 5: Solve for x
    x = 766,198,411,015.55/989,759.73
  6. Step 6: Final answer
    x = 774,125.67

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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.