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Finding the Fourth Proportional to 628,971.04, 867,953.97 and 342,490.44

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Solution

The fourth proportional to 628,971.04, 867,953.97 and 342,490.44 is: 472,622.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,971.04 : 867,953.97 = 342,490.44 : x
  2. Step 2: Convert to fraction form
    628,971.04/867,953.97 = 342,490.44/x
  3. Step 3: Cross multiply
    628,971.04x = 867,953.97 × 342,490.44
  4. Step 4: Simplify right side
    628,971.04x = 297,265,937,085.05
  5. Step 5: Solve for x
    x = 297,265,937,085.05/628,971.04
  6. Step 6: Final answer
    x = 472,622.61

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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.