Home / 1,239,971.90-1,711,260.07-696,143.36

Finding the Fourth Proportional to 1,239,971.90, 1,711,260.07 and 696,143.36

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Solution

The fourth proportional to 1,239,971.90, 1,711,260.07 and 696,143.36 is: 960,733.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,971.90 : 1,711,260.07 = 696,143.36 : x
  2. Step 2: Convert to fraction form
    1,239,971.90/1,711,260.07 = 696,143.36/x
  3. Step 3: Cross multiply
    1,239,971.90x = 1,711,260.07 × 696,143.36
  4. Step 4: Simplify right side
    1,239,971.90x = 1,191,282,337,501.43
  5. Step 5: Solve for x
    x = 1,191,282,337,501.43/1,239,971.90
  6. Step 6: Final answer
    x = 960,733.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.