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Finding the Fourth Proportional to 628,409.39, 867,223.41 and 341,947.93

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Solution

The fourth proportional to 628,409.39, 867,223.41 and 341,947.93 is: 471,898.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,409.39 : 867,223.41 = 341,947.93 : x
  2. Step 2: Convert to fraction form
    628,409.39/867,223.41 = 341,947.93/x
  3. Step 3: Cross multiply
    628,409.39x = 867,223.41 × 341,947.93
  4. Step 4: Simplify right side
    628,409.39x = 296,545,249,996.18
  5. Step 5: Solve for x
    x = 296,545,249,996.18/628,409.39
  6. Step 6: Final answer
    x = 471,898.18

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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.