Home / 756,419.40-1,134,629.10-689,934.60

Finding the Fourth Proportional to 756,419.40, 1,134,629.10 and 689,934.60

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Solution

The fourth proportional to 756,419.40, 1,134,629.10 and 689,934.60 is: 1,034,901.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,419.40 : 1,134,629.10 = 689,934.60 : x
  2. Step 2: Convert to fraction form
    756,419.40/1,134,629.10 = 689,934.60/x
  3. Step 3: Cross multiply
    756,419.40x = 1,134,629.10 × 689,934.60
  4. Step 4: Simplify right side
    756,419.40x = 782,819,874,256.86
  5. Step 5: Solve for x
    x = 782,819,874,256.86/756,419.40
  6. Step 6: Final answer
    x = 1,034,901.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.