Home / 870,867.58-1,201,730.91-488,820.55

Finding the Fourth Proportional to 870,867.58, 1,201,730.91 and 488,820.55

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Solution

The fourth proportional to 870,867.58, 1,201,730.91 and 488,820.55 is: 674,535.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,867.58 : 1,201,730.91 = 488,820.55 : x
  2. Step 2: Convert to fraction form
    870,867.58/1,201,730.91 = 488,820.55/x
  3. Step 3: Cross multiply
    870,867.58x = 1,201,730.91 × 488,820.55
  4. Step 4: Simplify right side
    870,867.58x = 587,430,764,378.20
  5. Step 5: Solve for x
    x = 587,430,764,378.20/870,867.58
  6. Step 6: Final answer
    x = 674,535.12

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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.