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Finding the Fourth Proportional to 455,718.08, 628,871.81 and 262,111.17

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Solution

The fourth proportional to 455,718.08, 628,871.81 and 262,111.17 is: 361,702.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,718.08 : 628,871.81 = 262,111.17 : x
  2. Step 2: Convert to fraction form
    455,718.08/628,871.81 = 262,111.17/x
  3. Step 3: Cross multiply
    455,718.08x = 628,871.81 × 262,111.17
  4. Step 4: Simplify right side
    455,718.08x = 164,834,326,946.83
  5. Step 5: Solve for x
    x = 164,834,326,946.83/455,718.08
  6. Step 6: Final answer
    x = 361,702.41

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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.