Home / 1,078,145.52-1,488,319.05-696,358.50

Finding the Fourth Proportional to 1,078,145.52, 1,488,319.05 and 696,358.50

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Solution

The fourth proportional to 1,078,145.52, 1,488,319.05 and 696,358.50 is: 961,283.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,145.52 : 1,488,319.05 = 696,358.50 : x
  2. Step 2: Convert to fraction form
    1,078,145.52/1,488,319.05 = 696,358.50/x
  3. Step 3: Cross multiply
    1,078,145.52x = 1,488,319.05 × 696,358.50
  4. Step 4: Simplify right side
    1,078,145.52x = 1,036,403,621,179.43
  5. Step 5: Solve for x
    x = 1,036,403,621,179.43/1,078,145.52
  6. Step 6: Final answer
    x = 961,283.61

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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.