Home / 859,341.72-1,289,799.90-856,126.83

Finding the Fourth Proportional to 859,341.72, 1,289,799.90 and 856,126.83

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Solution

The fourth proportional to 859,341.72, 1,289,799.90 and 856,126.83 is: 1,284,974.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,341.72 : 1,289,799.90 = 856,126.83 : x
  2. Step 2: Convert to fraction form
    859,341.72/1,289,799.90 = 856,126.83/x
  3. Step 3: Cross multiply
    859,341.72x = 1,289,799.90 × 856,126.83
  4. Step 4: Simplify right side
    859,341.72x = 1,104,232,299,721.32
  5. Step 5: Solve for x
    x = 1,104,232,299,721.32/859,341.72
  6. Step 6: Final answer
    x = 1,284,974.62

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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.