Home / 1,078,236.45-1,488,444.57-696,449.43

Finding the Fourth Proportional to 1,078,236.45, 1,488,444.57 and 696,449.43

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Solution

The fourth proportional to 1,078,236.45, 1,488,444.57 and 696,449.43 is: 961,409.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,236.45 : 1,488,444.57 = 696,449.43 : x
  2. Step 2: Convert to fraction form
    1,078,236.45/1,488,444.57 = 696,449.43/x
  3. Step 3: Cross multiply
    1,078,236.45x = 1,488,444.57 × 696,449.43
  4. Step 4: Simplify right side
    1,078,236.45x = 1,036,626,372,363.10
  5. Step 5: Solve for x
    x = 1,036,626,372,363.10/1,078,236.45
  6. Step 6: Final answer
    x = 961,409.13

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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.