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Finding the Fourth Proportional to 713,486.61, 984,642.26 and 426,951.54

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Solution

The fourth proportional to 713,486.61, 984,642.26 and 426,951.54 is: 589,211.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,486.61 : 984,642.26 = 426,951.54 : x
  2. Step 2: Convert to fraction form
    713,486.61/984,642.26 = 426,951.54/x
  3. Step 3: Cross multiply
    713,486.61x = 984,642.26 × 426,951.54
  4. Step 4: Simplify right side
    713,486.61x = 420,394,529,256.08
  5. Step 5: Solve for x
    x = 420,394,529,256.08/713,486.61
  6. Step 6: Final answer
    x = 589,211.52

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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.