Home / 1,383,630.58-1,909,457.51-802,809.86

Finding the Fourth Proportional to 1,383,630.58, 1,909,457.51 and 802,809.86

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Solution

The fourth proportional to 1,383,630.58, 1,909,457.51 and 802,809.86 is: 1,107,905.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,630.58 : 1,909,457.51 = 802,809.86 : x
  2. Step 2: Convert to fraction form
    1,383,630.58/1,909,457.51 = 802,809.86/x
  3. Step 3: Cross multiply
    1,383,630.58x = 1,909,457.51 × 802,809.86
  4. Step 4: Simplify right side
    1,383,630.58x = 1,532,931,316,279.05
  5. Step 5: Solve for x
    x = 1,532,931,316,279.05/1,383,630.58
  6. Step 6: Final answer
    x = 1,107,905.06

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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.