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Finding the Fourth Proportional to 640,867.52, 961,879.08 and 341,597.36

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Solution

The fourth proportional to 640,867.52, 961,879.08 and 341,597.36 is: 512,704.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,867.52 : 961,879.08 = 341,597.36 : x
  2. Step 2: Convert to fraction form
    640,867.52/961,879.08 = 341,597.36/x
  3. Step 3: Cross multiply
    640,867.52x = 961,879.08 × 341,597.36
  4. Step 4: Simplify right side
    640,867.52x = 328,575,349,557.83
  5. Step 5: Solve for x
    x = 328,575,349,557.83/640,867.52
  6. Step 6: Final answer
    x = 512,704.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.