Home / 1,276,022.20-1,913,111.70-715,228.60

Finding the Fourth Proportional to 1,276,022.20, 1,913,111.70 and 715,228.60

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Solution

The fourth proportional to 1,276,022.20, 1,913,111.70 and 715,228.60 is: 1,072,326.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,022.20 : 1,913,111.70 = 715,228.60 : x
  2. Step 2: Convert to fraction form
    1,276,022.20/1,913,111.70 = 715,228.60/x
  3. Step 3: Cross multiply
    1,276,022.20x = 1,913,111.70 × 715,228.60
  4. Step 4: Simplify right side
    1,276,022.20x = 1,368,312,202,834.62
  5. Step 5: Solve for x
    x = 1,368,312,202,834.62/1,276,022.20
  6. Step 6: Final answer
    x = 1,072,326.33

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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.