Home / 980,755.40-1,353,443.64-551,035.28

Finding the Fourth Proportional to 980,755.40, 1,353,443.64 and 551,035.28

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Solution

The fourth proportional to 980,755.40, 1,353,443.64 and 551,035.28 is: 760,429.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,755.40 : 1,353,443.64 = 551,035.28 : x
  2. Step 2: Convert to fraction form
    980,755.40/1,353,443.64 = 551,035.28/x
  3. Step 3: Cross multiply
    980,755.40x = 1,353,443.64 × 551,035.28
  4. Step 4: Simplify right side
    980,755.40x = 745,795,195,131.62
  5. Step 5: Solve for x
    x = 745,795,195,131.62/980,755.40
  6. Step 6: Final answer
    x = 760,429.35

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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.