Home / 2,085,485.28-3,128,727.28-870,386.28

Finding the Fourth Proportional to 2,085,485.28, 3,128,727.28 and 870,386.28

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Solution

The fourth proportional to 2,085,485.28, 3,128,727.28 and 870,386.28 is: 1,305,787.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,485.28 : 3,128,727.28 = 870,386.28 : x
  2. Step 2: Convert to fraction form
    2,085,485.28/3,128,727.28 = 870,386.28/x
  3. Step 3: Cross multiply
    2,085,485.28x = 3,128,727.28 × 870,386.28
  4. Step 4: Simplify right side
    2,085,485.28x = 2,723,201,298,373.72
  5. Step 5: Solve for x
    x = 2,723,201,298,373.72/2,085,485.28
  6. Step 6: Final answer
    x = 1,305,787.83

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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.