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Finding the Fourth Proportional to 713,486.36, 984,641.92 and 426,951.29

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Solution

The fourth proportional to 713,486.36, 984,641.92 and 426,951.29 is: 589,211.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,486.36 : 984,641.92 = 426,951.29 : x
  2. Step 2: Convert to fraction form
    713,486.36/984,641.92 = 426,951.29/x
  3. Step 3: Cross multiply
    713,486.36x = 984,641.92 × 426,951.29
  4. Step 4: Simplify right side
    713,486.36x = 420,394,131,941.49
  5. Step 5: Solve for x
    x = 420,394,131,941.49/713,486.36
  6. Step 6: Final answer
    x = 589,211.17

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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.