Home / 1,555,775.28-2,146,969.92-840,383.28

Finding the Fourth Proportional to 1,555,775.28, 2,146,969.92 and 840,383.28

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Solution

The fourth proportional to 1,555,775.28, 2,146,969.92 and 840,383.28 is: 1,159,728.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,775.28 : 2,146,969.92 = 840,383.28 : x
  2. Step 2: Convert to fraction form
    1,555,775.28/2,146,969.92 = 840,383.28/x
  3. Step 3: Cross multiply
    1,555,775.28x = 2,146,969.92 × 840,383.28
  4. Step 4: Simplify right side
    1,555,775.28x = 1,804,277,623,430.94
  5. Step 5: Solve for x
    x = 1,804,277,623,430.94/1,555,775.28
  6. Step 6: Final answer
    x = 1,159,728.94

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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.