Home / 1,942,505.40-2,910,647.70-1,276,879.80

Finding the Fourth Proportional to 1,942,505.40, 2,910,647.70 and 1,276,879.80

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Solution

The fourth proportional to 1,942,505.40, 2,910,647.70 and 1,276,879.80 is: 1,913,275.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,505.40 : 2,910,647.70 = 1,276,879.80 : x
  2. Step 2: Convert to fraction form
    1,942,505.40/2,910,647.70 = 1,276,879.80/x
  3. Step 3: Cross multiply
    1,942,505.40x = 2,910,647.70 × 1,276,879.80
  4. Step 4: Simplify right side
    1,942,505.40x = 3,716,547,253,046.46
  5. Step 5: Solve for x
    x = 3,716,547,253,046.46/1,942,505.40
  6. Step 6: Final answer
    x = 1,913,275.12

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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.