Home / 1,383,728.18-1,909,462.56-802,906.34

Finding the Fourth Proportional to 1,383,728.18, 1,909,462.56 and 802,906.34

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Solution

The fourth proportional to 1,383,728.18, 1,909,462.56 and 802,906.34 is: 1,107,962.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,728.18 : 1,909,462.56 = 802,906.34 : x
  2. Step 2: Convert to fraction form
    1,383,728.18/1,909,462.56 = 802,906.34/x
  3. Step 3: Cross multiply
    1,383,728.18x = 1,909,462.56 × 802,906.34
  4. Step 4: Simplify right side
    1,383,728.18x = 1,533,119,595,416.63
  5. Step 5: Solve for x
    x = 1,533,119,595,416.63/1,383,728.18
  6. Step 6: Final answer
    x = 1,107,962.98

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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.