Home / 987,931.50-1,363,369.23-605,736.78

Finding the Fourth Proportional to 987,931.50, 1,363,369.23 and 605,736.78

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Solution

The fourth proportional to 987,931.50, 1,363,369.23 and 605,736.78 is: 835,931.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,931.50 : 1,363,369.23 = 605,736.78 : x
  2. Step 2: Convert to fraction form
    987,931.50/1,363,369.23 = 605,736.78/x
  3. Step 3: Cross multiply
    987,931.50x = 1,363,369.23 × 605,736.78
  4. Step 4: Simplify right side
    987,931.50x = 825,842,887,331.28
  5. Step 5: Solve for x
    x = 825,842,887,331.28/987,931.50
  6. Step 6: Final answer
    x = 835,931.32

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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.