Home / 912,205.80-1,368,308.70-885,961.80

Finding the Fourth Proportional to 912,205.80, 1,368,308.70 and 885,961.80

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Solution

The fourth proportional to 912,205.80, 1,368,308.70 and 885,961.80 is: 1,328,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,205.80 : 1,368,308.70 = 885,961.80 : x
  2. Step 2: Convert to fraction form
    912,205.80/1,368,308.70 = 885,961.80/x
  3. Step 3: Cross multiply
    912,205.80x = 1,368,308.70 × 885,961.80
  4. Step 4: Simplify right side
    912,205.80x = 1,212,269,238,807.66
  5. Step 5: Solve for x
    x = 1,212,269,238,807.66/912,205.80
  6. Step 6: Final answer
    x = 1,328,942.70

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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.