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Finding the Fourth Proportional to 614,636.85, 848,136.87 and 342,679.17

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Solution

The fourth proportional to 614,636.85, 848,136.87 and 342,679.17 is: 472,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,636.85 : 848,136.87 = 342,679.17 : x
  2. Step 2: Convert to fraction form
    614,636.85/848,136.87 = 342,679.17/x
  3. Step 3: Cross multiply
    614,636.85x = 848,136.87 × 342,679.17
  4. Step 4: Simplify right side
    614,636.85x = 290,638,838,658.00
  5. Step 5: Solve for x
    x = 290,638,838,658.00/614,636.85
  6. Step 6: Final answer
    x = 472,862.70

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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.