Home / 691,705.80-1,036,169.16-344,443.08

Finding the Fourth Proportional to 691,705.80, 1,036,169.16 and 344,443.08

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Solution

The fourth proportional to 691,705.80, 1,036,169.16 and 344,443.08 is: 515,972.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,705.80 : 1,036,169.16 = 344,443.08 : x
  2. Step 2: Convert to fraction form
    691,705.80/1,036,169.16 = 344,443.08/x
  3. Step 3: Cross multiply
    691,705.80x = 1,036,169.16 × 344,443.08
  4. Step 4: Simplify right side
    691,705.80x = 356,901,296,871.41
  5. Step 5: Solve for x
    x = 356,901,296,871.41/691,705.80
  6. Step 6: Final answer
    x = 515,972.68

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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.