Home / 2,678,555.61-4,017,985.09-857,080.67

Finding the Fourth Proportional to 2,678,555.61, 4,017,985.09 and 857,080.67

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Solution

The fourth proportional to 2,678,555.61, 4,017,985.09 and 857,080.67 is: 1,285,669.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678,555.61 : 4,017,985.09 = 857,080.67 : x
  2. Step 2: Convert to fraction form
    2,678,555.61/4,017,985.09 = 857,080.67/x
  3. Step 3: Cross multiply
    2,678,555.61x = 4,017,985.09 × 857,080.67
  4. Step 4: Simplify right side
    2,678,555.61x = 3,443,737,330,754.58
  5. Step 5: Solve for x
    x = 3,443,737,330,754.58/2,678,555.61
  6. Step 6: Final answer
    x = 1,285,669.53

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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.