Home / 969,845.60-1,338,428.45-540,125.75

Finding the Fourth Proportional to 969,845.60, 1,338,428.45 and 540,125.75

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Solution

The fourth proportional to 969,845.60, 1,338,428.45 and 540,125.75 is: 745,396.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,845.60 : 1,338,428.45 = 540,125.75 : x
  2. Step 2: Convert to fraction form
    969,845.60/1,338,428.45 = 540,125.75/x
  3. Step 3: Cross multiply
    969,845.60x = 1,338,428.45 × 540,125.75
  4. Step 4: Simplify right side
    969,845.60x = 722,919,670,377.59
  5. Step 5: Solve for x
    x = 722,919,670,377.59/969,845.60
  6. Step 6: Final answer
    x = 745,396.66

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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.