Home / 869,345.66-1,199,696.19-487,372.52

Finding the Fourth Proportional to 869,345.66, 1,199,696.19 and 487,372.52

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Solution

The fourth proportional to 869,345.66, 1,199,696.19 and 487,372.52 is: 672,573.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,345.66 : 1,199,696.19 = 487,372.52 : x
  2. Step 2: Convert to fraction form
    869,345.66/1,199,696.19 = 487,372.52/x
  3. Step 3: Cross multiply
    869,345.66x = 1,199,696.19 × 487,372.52
  4. Step 4: Simplify right side
    869,345.66x = 584,698,949,356.22
  5. Step 5: Solve for x
    x = 584,698,949,356.22/869,345.66
  6. Step 6: Final answer
    x = 672,573.61

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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.