Home / 1,028,746.86-1,420,162.94-685,154.58

Finding the Fourth Proportional to 1,028,746.86, 1,420,162.94 and 685,154.58

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Solution

The fourth proportional to 1,028,746.86, 1,420,162.94 and 685,154.58 is: 945,841.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,746.86 : 1,420,162.94 = 685,154.58 : x
  2. Step 2: Convert to fraction form
    1,028,746.86/1,420,162.94 = 685,154.58/x
  3. Step 3: Cross multiply
    1,028,746.86x = 1,420,162.94 × 685,154.58
  4. Step 4: Simplify right side
    1,028,746.86x = 973,031,142,687.27
  5. Step 5: Solve for x
    x = 973,031,142,687.27/1,028,746.86
  6. Step 6: Final answer
    x = 945,841.18

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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.