Home / 1,381,283.76-1,906,465.62-928,312.32

Finding the Fourth Proportional to 1,381,283.76, 1,906,465.62 and 928,312.32

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Solution

The fourth proportional to 1,381,283.76, 1,906,465.62 and 928,312.32 is: 1,281,268.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,283.76 : 1,906,465.62 = 928,312.32 : x
  2. Step 2: Convert to fraction form
    1,381,283.76/1,906,465.62 = 928,312.32/x
  3. Step 3: Cross multiply
    1,381,283.76x = 1,906,465.62 × 928,312.32
  4. Step 4: Simplify right side
    1,381,283.76x = 1,769,795,522,702.44
  5. Step 5: Solve for x
    x = 1,769,795,522,702.44/1,381,283.76
  6. Step 6: Final answer
    x = 1,281,268.61

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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.