Home / 980,098.30-1,352,535.76-550,378.72

Finding the Fourth Proportional to 980,098.30, 1,352,535.76 and 550,378.72

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Solution

The fourth proportional to 980,098.30, 1,352,535.76 and 550,378.72 is: 759,522.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,098.30 : 1,352,535.76 = 550,378.72 : x
  2. Step 2: Convert to fraction form
    980,098.30/1,352,535.76 = 550,378.72/x
  3. Step 3: Cross multiply
    980,098.30x = 1,352,535.76 × 550,378.72
  4. Step 4: Simplify right side
    980,098.30x = 744,406,900,343.03
  5. Step 5: Solve for x
    x = 744,406,900,343.03/980,098.30
  6. Step 6: Final answer
    x = 759,522.69

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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.