Home / 980,753.40-1,353,440.88-551,033.28

Finding the Fourth Proportional to 980,753.40, 1,353,440.88 and 551,033.28

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Solution

The fourth proportional to 980,753.40, 1,353,440.88 and 551,033.28 is: 760,426.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,753.40 : 1,353,440.88 = 551,033.28 : x
  2. Step 2: Convert to fraction form
    980,753.40/1,353,440.88 = 551,033.28/x
  3. Step 3: Cross multiply
    980,753.40x = 1,353,440.88 × 551,033.28
  4. Step 4: Simplify right side
    980,753.40x = 745,790,967,392.49
  5. Step 5: Solve for x
    x = 745,790,967,392.49/980,753.40
  6. Step 6: Final answer
    x = 760,426.59

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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.