Home / 912,005.80-1,368,008.70-885,761.80

Finding the Fourth Proportional to 912,005.80, 1,368,008.70 and 885,761.80

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Solution

The fourth proportional to 912,005.80, 1,368,008.70 and 885,761.80 is: 1,328,642.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,005.80 : 1,368,008.70 = 885,761.80 : x
  2. Step 2: Convert to fraction form
    912,005.80/1,368,008.70 = 885,761.80/x
  3. Step 3: Cross multiply
    912,005.80x = 1,368,008.70 × 885,761.80
  4. Step 4: Simplify right side
    912,005.80x = 1,211,729,848,527.66
  5. Step 5: Solve for x
    x = 1,211,729,848,527.66/912,005.80
  6. Step 6: Final answer
    x = 1,328,642.70

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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.