Home / 1,038,383.80-1,554,951.30-828,431.80

Finding the Fourth Proportional to 1,038,383.80, 1,554,951.30 and 828,431.80

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Solution

The fourth proportional to 1,038,383.80, 1,554,951.30 and 828,431.80 is: 1,240,553.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,383.80 : 1,554,951.30 = 828,431.80 : x
  2. Step 2: Convert to fraction form
    1,038,383.80/1,554,951.30 = 828,431.80/x
  3. Step 3: Cross multiply
    1,038,383.80x = 1,554,951.30 × 828,431.80
  4. Step 4: Simplify right side
    1,038,383.80x = 1,288,171,104,371.34
  5. Step 5: Solve for x
    x = 1,288,171,104,371.34/1,038,383.80
  6. Step 6: Final answer
    x = 1,240,553.93

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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.