Home / 1,442,945.60-1,991,133.92-830,935.36

Finding the Fourth Proportional to 1,442,945.60, 1,991,133.92 and 830,935.36

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Solution

The fourth proportional to 1,442,945.60, 1,991,133.92 and 830,935.36 is: 1,146,615.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,945.60 : 1,991,133.92 = 830,935.36 : x
  2. Step 2: Convert to fraction form
    1,442,945.60/1,991,133.92 = 830,935.36/x
  3. Step 3: Cross multiply
    1,442,945.60x = 1,991,133.92 × 830,935.36
  4. Step 4: Simplify right side
    1,442,945.60x = 1,654,503,580,623.41
  5. Step 5: Solve for x
    x = 1,654,503,580,623.41/1,442,945.60
  6. Step 6: Final answer
    x = 1,146,615.35

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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.