Home / 980,760.15-1,353,450.20-551,040.03

Finding the Fourth Proportional to 980,760.15, 1,353,450.20 and 551,040.03

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Solution

The fourth proportional to 980,760.15, 1,353,450.20 and 551,040.03 is: 760,435.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,760.15 : 1,353,450.20 = 551,040.03 : x
  2. Step 2: Convert to fraction form
    980,760.15/1,353,450.20 = 551,040.03/x
  3. Step 3: Cross multiply
    980,760.15x = 1,353,450.20 × 551,040.03
  4. Step 4: Simplify right side
    980,760.15x = 745,805,236,056.31
  5. Step 5: Solve for x
    x = 745,805,236,056.31/980,760.15
  6. Step 6: Final answer
    x = 760,435.91

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1.5x scale

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.