Home / 1,319,215.92-1,820,562.66-775,343.85

Finding the Fourth Proportional to 1,319,215.92, 1,820,562.66 and 775,343.85

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Solution

The fourth proportional to 1,319,215.92, 1,820,562.66 and 775,343.85 is: 1,070,000.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,215.92 : 1,820,562.66 = 775,343.85 : x
  2. Step 2: Convert to fraction form
    1,319,215.92/1,820,562.66 = 775,343.85/x
  3. Step 3: Cross multiply
    1,319,215.92x = 1,820,562.66 × 775,343.85
  4. Step 4: Simplify right side
    1,319,215.92x = 1,411,562,061,970.64
  5. Step 5: Solve for x
    x = 1,411,562,061,970.64/1,319,215.92
  6. Step 6: Final answer
    x = 1,070,000.78

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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.