Home / 1,370,220.66-1,890,890.46-758,374.61

Finding the Fourth Proportional to 1,370,220.66, 1,890,890.46 and 758,374.61

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Solution

The fourth proportional to 1,370,220.66, 1,890,890.46 and 758,374.61 is: 1,046,549.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,220.66 : 1,890,890.46 = 758,374.61 : x
  2. Step 2: Convert to fraction form
    1,370,220.66/1,890,890.46 = 758,374.61/x
  3. Step 3: Cross multiply
    1,370,220.66x = 1,890,890.46 × 758,374.61
  4. Step 4: Simplify right side
    1,370,220.66x = 1,434,003,305,700.77
  5. Step 5: Solve for x
    x = 1,434,003,305,700.77/1,370,220.66
  6. Step 6: Final answer
    x = 1,046,549.18

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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.