Home / 1,319,233.71-1,821,678.77-830,018.89

Finding the Fourth Proportional to 1,319,233.71, 1,821,678.77 and 830,018.89

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Solution

The fourth proportional to 1,319,233.71, 1,821,678.77 and 830,018.89 is: 1,146,140.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,233.71 : 1,821,678.77 = 830,018.89 : x
  2. Step 2: Convert to fraction form
    1,319,233.71/1,821,678.77 = 830,018.89/x
  3. Step 3: Cross multiply
    1,319,233.71x = 1,821,678.77 × 830,018.89
  4. Step 4: Simplify right side
    1,319,233.71x = 1,512,027,790,611.97
  5. Step 5: Solve for x
    x = 1,512,027,790,611.97/1,319,233.71
  6. Step 6: Final answer
    x = 1,146,140.96

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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.