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Finding the Fourth Proportional to 463,993.52, 640,356 and 260,079.08

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Solution

The fourth proportional to 463,993.52, 640,356 and 260,079.08 is: 358,934.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,993.52 : 640,356 = 260,079.08 : x
  2. Step 2: Convert to fraction form
    463,993.52/640,356 = 260,079.08/x
  3. Step 3: Cross multiply
    463,993.52x = 640,356 × 260,079.08
  4. Step 4: Simplify right side
    463,993.52x = 166,543,199,352.48
  5. Step 5: Solve for x
    x = 166,543,199,352.48/463,993.52
  6. Step 6: Final answer
    x = 358,934.32

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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.