Home / 1,282,920.72-1,770,459.48-830,998.32

Finding the Fourth Proportional to 1,282,920.72, 1,770,459.48 and 830,998.32

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Solution

The fourth proportional to 1,282,920.72, 1,770,459.48 and 830,998.32 is: 1,146,796.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,920.72 : 1,770,459.48 = 830,998.32 : x
  2. Step 2: Convert to fraction form
    1,282,920.72/1,770,459.48 = 830,998.32/x
  3. Step 3: Cross multiply
    1,282,920.72x = 1,770,459.48 × 830,998.32
  4. Step 4: Simplify right side
    1,282,920.72x = 1,471,248,853,508.07
  5. Step 5: Solve for x
    x = 1,471,248,853,508.07/1,282,920.72
  6. Step 6: Final answer
    x = 1,146,796.39

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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.