Home / 910,471.05-1,365,870.60-378,045.90

Finding the Fourth Proportional to 910,471.05, 1,365,870.60 and 378,045.90

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Solution

The fourth proportional to 910,471.05, 1,365,870.60 and 378,045.90 is: 567,136.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,471.05 : 1,365,870.60 = 378,045.90 : x
  2. Step 2: Convert to fraction form
    910,471.05/1,365,870.60 = 378,045.90/x
  3. Step 3: Cross multiply
    910,471.05x = 1,365,870.60 × 378,045.90
  4. Step 4: Simplify right side
    910,471.05x = 516,361,780,260.54
  5. Step 5: Solve for x
    x = 516,361,780,260.54/910,471.05
  6. Step 6: Final answer
    x = 567,136.96

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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.