Home / 999,661.59-1,378,097.96-712,683.45

Finding the Fourth Proportional to 999,661.59, 1,378,097.96 and 712,683.45

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Solution

The fourth proportional to 999,661.59, 1,378,097.96 and 712,683.45 is: 982,480.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,661.59 : 1,378,097.96 = 712,683.45 : x
  2. Step 2: Convert to fraction form
    999,661.59/1,378,097.96 = 712,683.45/x
  3. Step 3: Cross multiply
    999,661.59x = 1,378,097.96 × 712,683.45
  4. Step 4: Simplify right side
    999,661.59x = 982,147,605,007.35
  5. Step 5: Solve for x
    x = 982,147,605,007.35/999,661.59
  6. Step 6: Final answer
    x = 982,480.09

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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.