Home / 1,261,262.72-1,890,769.14-462,357.78

Finding the Fourth Proportional to 1,261,262.72, 1,890,769.14 and 462,357.78

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Solution

The fourth proportional to 1,261,262.72, 1,890,769.14 and 462,357.78 is: 693,124.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,262.72 : 1,890,769.14 = 462,357.78 : x
  2. Step 2: Convert to fraction form
    1,261,262.72/1,890,769.14 = 462,357.78/x
  3. Step 3: Cross multiply
    1,261,262.72x = 1,890,769.14 × 462,357.78
  4. Step 4: Simplify right side
    1,261,262.72x = 874,211,822,062.91
  5. Step 5: Solve for x
    x = 874,211,822,062.91/1,261,262.72
  6. Step 6: Final answer
    x = 693,124.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.