Home / 1,370,288.28-2,055,432.42-423,638.04

Finding the Fourth Proportional to 1,370,288.28, 2,055,432.42 and 423,638.04

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Solution

The fourth proportional to 1,370,288.28, 2,055,432.42 and 423,638.04 is: 635,457.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,288.28 : 2,055,432.42 = 423,638.04 : x
  2. Step 2: Convert to fraction form
    1,370,288.28/2,055,432.42 = 423,638.04/x
  3. Step 3: Cross multiply
    1,370,288.28x = 2,055,432.42 × 423,638.04
  4. Step 4: Simplify right side
    1,370,288.28x = 870,759,361,761.26
  5. Step 5: Solve for x
    x = 870,759,361,761.26/1,370,288.28
  6. Step 6: Final answer
    x = 635,457.06

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Double scale
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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.