Home / 987,964.67-1,479,144.60-646,805.43

Finding the Fourth Proportional to 987,964.67, 1,479,144.60 and 646,805.43

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Solution

The fourth proportional to 987,964.67, 1,479,144.60 and 646,805.43 is: 968,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,964.67 : 1,479,144.60 = 646,805.43 : x
  2. Step 2: Convert to fraction form
    987,964.67/1,479,144.60 = 646,805.43/x
  3. Step 3: Cross multiply
    987,964.67x = 1,479,144.60 × 646,805.43
  4. Step 4: Simplify right side
    987,964.67x = 956,718,759,035.18
  5. Step 5: Solve for x
    x = 956,718,759,035.18/987,964.67
  6. Step 6: Final answer
    x = 968,373.45

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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.