Home / 1,237,104.30-1,852,506.30-815,100.78

Finding the Fourth Proportional to 1,237,104.30, 1,852,506.30 and 815,100.78

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Solution

The fourth proportional to 1,237,104.30, 1,852,506.30 and 815,100.78 is: 1,220,575.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,104.30 : 1,852,506.30 = 815,100.78 : x
  2. Step 2: Convert to fraction form
    1,237,104.30/1,852,506.30 = 815,100.78/x
  3. Step 3: Cross multiply
    1,237,104.30x = 1,852,506.30 × 815,100.78
  4. Step 4: Simplify right side
    1,237,104.30x = 1,509,979,330,084.91
  5. Step 5: Solve for x
    x = 1,509,979,330,084.91/1,237,104.30
  6. Step 6: Final answer
    x = 1,220,575.61

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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.