Home / 980,330.98-1,352,983.61-550,611.10

Finding the Fourth Proportional to 980,330.98, 1,352,983.61 and 550,611.10

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Solution

The fourth proportional to 980,330.98, 1,352,983.61 and 550,611.10 is: 759,914.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,330.98 : 1,352,983.61 = 550,611.10 : x
  2. Step 2: Convert to fraction form
    980,330.98/1,352,983.61 = 550,611.10/x
  3. Step 3: Cross multiply
    980,330.98x = 1,352,983.61 × 550,611.10
  4. Step 4: Simplify right side
    980,330.98x = 744,967,793,784.07
  5. Step 5: Solve for x
    x = 744,967,793,784.07/980,330.98
  6. Step 6: Final answer
    x = 759,914.57

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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.